Add tag

Author: AndreuCodina

.github/workflows/pull_request.yaml

@@ -53,6 +53,7 @@ jobs:
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0c
         with:
           file: api/src/api/Dockerfile
+          tags: myregistry/api:${{ github.event.pull_request.head.sha }}
           push: false
 
   deploy-api-dev: