added nightly release gha with version bump

.github/workflows/_release-with-built-site-as-artifact.yml

@@ -0,0 +1,25 @@
+name: Release tag with _site.tar.gz artefact
+on:
+  workflow_call:
+    inputs:
+      tag:
+        description: Github Tag to create
+        required: true
+        type: string
+
+jobs:
+  bundle:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 #v4.1.2
+      - uses: ruby/setup-ruby@v1 # https://github.com/ruby/setup-ruby?tab=readme-ov-file#versioning
+        with:
+          ruby-version: "3.3" # Not needed with a .ruby-version file
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - run: gem install jekyll bundler
+      - run: bundle exec jekyll build
+      - run: tar -cvvzf _site.tar.gz ./_site
+      - name: Create release
+        run: gh release create ${{ inputs.tag }} _site.tar.gz
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/manual-release-with-built-site-as-artifact.yml

@@ -1,4 +1,4 @@
-name: Manual release from tag
+name: Manual release custom tag
 on:
   workflow_dispatch:
     inputs:
@@ -8,18 +8,7 @@ on:
         type: string
 
 jobs:
-  bundle:
-    runs-on: ubuntu-22.04
-    steps:
-    - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 #v4.1.2
-    - uses: ruby/setup-ruby@v1 # https://github.com/ruby/setup-ruby?tab=readme-ov-file#versioning
-      with:
-        ruby-version: '3.3' # Not needed with a .ruby-version file
-        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
-    - run: gem install jekyll bundler
-    - run: bundle exec jekyll build
-    - run: tar -cvvzf _site.tar.gz ./_site
-    - name: Create release
-      run: gh release create ${{ inputs.tag }} _site.tar.gz
-      env:
-        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  release:
+    uses: ./.github/workflows/_release-with-built-site-as-artifact.yml
+    with:
+      tag: ${{inputs.tag}}

.github/workflows/nighly-build-release-with-artefact.yml

@@ -0,0 +1,22 @@
+name: Nighly release of main branch with bumped tag
+
+on:
+  schedule:
+    - cron: "0 1 * * *"
+
+jobs:
+  bump-version:
+    runs-on: ubuntu-latest
+    outputs:
+      tag: ${{ steps.bumped-tag.outputs.tag }}
+    steps:
+      - id: bumped-tag
+        run: |
+          VERSION=`git describe --tags --abbrev=0 | awk -F. '{OFS="."; $NF+=1; print $0}'`; \
+            echo "tag=${VERSION}" >> $GITHUB_OUTPUT
+
+  release:
+    uses: ./.github/workflows/_release-with-built-site-as-artifact.yml
+    needs: bump-version
+    with:
+      tag: ${{needs.bump-version.outputs.tag}}