only do full deploy.firebase.sh if open-resume.d changed

.harness/firebase-deploy.yaml

@@ -79,4 +79,8 @@ spec:
             GITLAB_PAT: ${{ secrets.get("resume-gitlab-gitlab-breel-dev-token") }}
           shell: sh
           script: |
+            export build_before=${{ build.before }}
+            export build_after=${{ build.after }}
+            if git --no-pager diff --name-only $build_before..$build_after | grep src.open.resume.d; then
                bash ./deploy.firebase.sh
+            fi