fix: make strict rules on amd64 experimental builds

.github/workflows/reusable_dockerfile_pipeline.yml

@@ -140,7 +140,15 @@ jobs:
       # only push if the branch/PR is not generated from a fork. Even though
       # forks can't push, we still want to try and build the image to catch
       # bugs. For testing purposes we only need an amd64 image.
-      - name: Build and Push Docker Image amd64
+      - name: Build and Push Experimental Docker Image amd64
+        # This will run only when the event is a push to a branch that is not 'main'
+        # and the ref is not a release candidate or release tag.
+        if: >-
+          github.event_name == 'push' &&
+          github.ref != 'refs/heads/main' &&
+          !startsWith(github.ref, 'refs/tags/v') &&
+          !startsWith(github.ref, 'refs/tags/v') &&
+          !contains(github.ref, '-rc')
         uses: docker/build-push-action@v4
         env:
           OUTPUT_SHORT_SHA: ${{ needs.prepare-env.outputs.output_short_sha }}
@@ -150,9 +158,7 @@ jobs:
           provenance: false
           platforms: linux/amd64
           # Only push if the head and base repos match, meaning it is not a fork
-          # yamllint disable
-          push: ${{ github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name }}
-          # yamllint enable
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           file: ${{ inputs.dockerfile }}