Merge pull request konflux-ci#483 from 14rcole/rhtapbugs-975-update

fix(rhtapbugs-975): use source_url instead of repo_url

.tekton/integration-service-pull-request.yaml

@@ -21,7 +21,7 @@ spec:
   - name: dockerfile
     value: Dockerfile
   - name: git-url
-    value: '{{repo_url}}'
+    value: '{{ source_url }}'
   - name: image-expires-after
     value: 5d
   - name: output-image