add tagpr

Author: kromiii

.github/workflows/tagpr.yml

@@ -0,0 +1,14 @@
+name: tagpr
+on:
+  push:
+    branches: ["main"]
+jobs:
+  tagpr:
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+    - uses: Songmu/tagpr@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}