ci: address code scanning scorecard alerts (#4275)

.github/workflows/docker-image.yml

@@ -15,10 +15,12 @@ concurrency:
 
 permissions:
   contents: read
-  packages: write
 
 jobs:
   build:
+    permissions:
+      contents: read
+      packages: write
     runs-on: ${{ matrix.runner }}
     strategy:
       fail-fast: false
@@ -42,10 +44,10 @@ jobs:
           submodules: recursive
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
 
       - name: Log in to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -53,13 +55,13 @@ jobs:
 
       - name: Docker meta (for labels)
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5
         with:
           images: ghcr.io/${{ github.repository_owner }}/readest
 
       - name: Build and push by digest
         id: build
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6
         with:
           context: .
           file: ./Dockerfile
@@ -87,6 +89,9 @@ jobs:
 
   merge:
     needs: build
+    permissions:
+      contents: read
+      packages: write
     runs-on: ubuntu-latest
     steps:
       - name: Download digests
@@ -97,10 +102,10 @@ jobs:
           merge-multiple: true
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
 
       - name: Log in to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -117,7 +122,7 @@ jobs:
 
       - name: Log in to Docker Hub
         if: steps.dockerhub.outputs.enabled == 'true'
-        uses: docker/login-action@v3
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
@@ -125,7 +130,7 @@ jobs:
       - name: Extract image metadata (GHCR only)
         id: meta-ghcr
         if: steps.dockerhub.outputs.enabled != 'true'
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5
         with:
           images: ghcr.io/${{ github.repository_owner }}/readest
           tags: |
@@ -137,7 +142,7 @@ jobs:
       - name: Extract image metadata (GHCR + Docker Hub)
         id: meta-all
         if: steps.dockerhub.outputs.enabled == 'true'
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5
         with:
           images: |
             ghcr.io/${{ github.repository_owner }}/readest