chore(ci): build - cache & permissions

.github/workflows/backend-mage-pipeline.yaml

@@ -33,6 +33,14 @@ jobs:
         uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go-version }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
       - name: Mage - check
         uses: magefile/mage-action@v2
         with:
@@ -63,6 +71,10 @@ jobs:
     defaults:
       run:
         shell: bash
+    # Add "id-token" with the intended permissions.
+    permissions:
+      contents: 'read'
+      id-token: 'write'
     steps:
       - name: Checkout
         uses: actions/checkout@v3