Reduce scope of check-pr-template.yml (#47347)

Only run this check on PRs that have Go and frontend changes.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
* Updated CI/CD workflow configuration to optimize PR validation
triggers based on affected file paths.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.github/workflows/check-pr-template.yml

@@ -2,6 +2,11 @@ name: Check PR template
 on:
   pull_request:
     types: [opened, edited, reopened, synchronize]
+    paths:
+      - "frontend/**"
+      - "**/*.go"
+      - "go.mod"
+      - "go.sum"
 permissions:
   pull-requests: read
 jobs: