ci: add version number tag to Docker images

The latest and homolog workflows now tag images with the version from
package.json in addition to their existing tags:
- latest → latest + 2.3.8
- homolog → homolog + homolog-2.3.8

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: possebon

.github/workflows/publish_docker_image_homolog.yml

@@ -22,12 +22,18 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Get version from package.json
+        id: version
+        run: echo "VERSION=$(node -p "require('./package.json').version")" >> "$GITHUB_OUTPUT"
+
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: homolog
+          tags: |
+            homolog
+            homolog-${{ steps.version.outputs.VERSION }}
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3

.github/workflows/publish_docker_image_latest.yml

@@ -22,12 +22,18 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Get version from package.json
+        id: version
+        run: echo "VERSION=$(node -p "require('./package.json').version")" >> "$GITHUB_OUTPUT"
+
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
-          tags: latest
+          tags: |
+            latest
+            ${{ steps.version.outputs.VERSION }}
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3