Fix pr-triage workflow issue

Author: Kyle-Ye

.github/workflows/pr-triage.yml

@@ -1,10 +1,8 @@
 name: PR Triage
 
 on:
-  push:
-    branches:
-      - '**'  # All branches
-      - '!main'  # Exclude main if needed
+  pull_request:
+    types: [opened, reopened, synchronize]
   workflow_dispatch:
     inputs:
       pr_number:
@@ -18,9 +16,8 @@ permissions:
 
 jobs:
   triage-pr:
-    if: github.event.pull_request != null || inputs.pr_number != '' # Only run if it's part of a PR or pr_number is provided
     uses: OpenSwiftUIProject/github-workflows/.github/workflows/pr-triage.yml@main
     with:
       # fromJSON workaround number inputs: https://github.com/orgs/community/discussions/67182#discussioncomment-8617964
-      pr_number: ${{ fromJSON(inputs.pr_number) }}
+      pr_number: ${{ inputs.pr_number && fromJSON(inputs.pr_number) || github.event.pull_request.number }}
     secrets: inherit