feat: test delete images in CI

.github/workflows/docker.yml

@@ -24,6 +24,13 @@ jobs:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Delete old images
+        uses: actions/delete-package-versions@v4
+        with:
+          package-type: 'container'
+          package-name: 'imartinez/privategpt'
+          min-versions-to-keep: 2
+          ignore-versions: '^main$'
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5
@@ -31,14 +38,11 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
-            type=sha
       - name: Build and push Docker image
         uses: docker/build-push-action@v5
         with:
           context: .
-          push: true
+          push: false
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}