Add PR triage workflow (#192)

Author: Kyle-Ye

.github/workflows/pr-triage.yml

@@ -0,0 +1,14 @@
+name: PR Triage
+
+on:
+  pull_request:
+    types: [opened]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  triage-pr:
+    uses: OpenSwiftUIProject/github-workflows/.github/workflows/pr-triage.yml@main
+    secrets: inherit