Adding automation to release s-p-b (#41)

.github/dependabot.yml

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+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: weekly
+    time: "10:00"
+  open-pull-requests-limit: 10
+  versioning-strategy: increase

.github/release-drafter.yml

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+name-template: '$RESOLVED_VERSION'
+tag-template: '$RESOLVED_VERSION'
+categories:
+  - title: 'Breaking'
+    label: 'major'
+  - title: 'Added'
+    label: 'minor'
+  - title: 'Fixed'
+    label: 'patch'
+  - title: 'Dependency updates'
+    label: 'dependencies'
+exclude-labels:
+  - 'skip-changelog'
+  - 'github_actions'
+version-resolver:
+  major:
+    labels:
+      - 'major'
+  minor:
+    labels:
+      - 'minor'
+  patch:
+    labels:
+      - 'patch'
+      - 'dependencies'
+  default: patch
+template: |
+  ## What’s Changed
+  $CHANGES

.github/workflows/_test.yml

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+name: Test
+
+on:
+  workflow_call:
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+env:
+  CACHE_NAME: node-modules-cache
+
+jobs:
+  Test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Restore Cache
+        uses: actions/cache/[email protected]
+        id: npm-cache
+        with:
+          path: |
+            node_modules/
+          key: ${{ env.CACHE_NAME }}-${{ hashFiles('package-lock.json') }}
+
+      - name: Test
+        run: npm test

.github/workflows/label-check.yml

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+name: label-check
+
+on:
+  pull_request_target:
+    types: [opened, labeled, unlabeled, synchronize]
+
+jobs:
+  label-check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: docker://agilepathway/pull-request-label-checker:latest
+        with:
+          one_of: major,minor,patch,dependencies,skip-changelog
+          repo_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/main.yml

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+name: Main
+
+on:
+  push:
+    branches: [main]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+env:
+  CACHE_NAME: node-modules-cache
+
+jobs:
+  Create-NPM-Cache:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Upload to Cache
+        uses: actions/[email protected]
+        id: npm-cache
+        with:
+          path: |
+            node_modules/
+          key: ${{ env.CACHE_NAME }}-${{ hashFiles('package-lock.json') }}
+
+      - name: Install dependencies
+        if: ${{ steps.npm-cache.outputs.cache-hit != 'true' }}
+        run: npm ci
+
+  Run-Tests:
+    permissions:
+      statuses: write
+      pull-requests: write
+    needs: [Create-NPM-Cache]
+    uses: ./.github/workflows/_test.yml
+
+  ReleaseDraft:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: read
+    steps:
+      - name: Draft release notes
+        uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pr.yml

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+name: PR
+
+on:
+  pull_request:
+    branches: [main]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+env:
+  CACHE_NAME: node-modules-cache
+
+jobs:
+  Create-NPM-Cache:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Upload to Cache
+        uses: actions/[email protected]
+        id: npm-cache
+        with:
+          path: |
+            node_modules/
+          key: ${{ env.CACHE_NAME }}-${{ hashFiles('package-lock.json') }}
+
+      - name: Install dependencies
+        if: ${{ steps.npm-cache.outputs.cache-hit != 'true' }}
+        run: npm ci
+
+  Run-Tests:
+    permissions:
+      statuses: write
+      pull-requests: write
+    needs: [Create-NPM-Cache]
+    uses: ./.github/workflows/_test.yml

.github/workflows/release.yml

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+name: release
+
+on:
+  release:
+    types: [published]
+
+defaults:
+  run:
+    shell: bash -l {0}
+
+env:
+  CACHE_NAME: node-modules-cache
+
+jobs:
+  Create-NPM-Cache:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Upload to Cache
+        uses: actions/[email protected]
+        id: npm-cache
+        with:
+          path: |
+            node_modules/
+          key: ${{ env.CACHE_NAME }}-${{ hashFiles('package-lock.json') }}
+
+      - name: Install dependencies
+        if: ${{ steps.npm-cache.outputs.cache-hit != 'true' }}
+        run: npm ci
+
+  Run-Tests:
+    permissions:
+      statuses: write
+      pull-requests: write
+    needs: [Create-NPM-Cache]
+    uses: ./.github/workflows/_test.yml
+
+  Release:
+    name: Release @skyscanner/eslint-plugin-backpack to NPM
+    runs-on: ubuntu-latest
+    environment: Publishing
+    needs: [Create-NPM-Cache, Run-Tests]
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v3
+        with:
+          ref: main
+
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Restore Cache
+        uses: actions/cache/[email protected]
+        id: npm-cache
+        with:
+          path: |
+            node_modules/
+          key: ${{ env.CACHE_NAME }}-${{ hashFiles('package-lock.json') }}
+
+      - name: Publish NPM package
+        run: |
+          npm version $RELEASE_VERSION --no-git-tag-version
+          npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          RELEASE_VERSION: ${{ github.event.release.tag_name }}