chore: add labeler workflow

.github/labeler.yml

@@ -0,0 +1,32 @@
+'m:release':
+- 'CHANGELOG.md'
+- 'gradle.properties'
+
+'m:docs':
+- '*.md'
+- 'docs/**/*'
+
+'m:workflow':
+- .github/**
+
+'m:gradle':
+- 'gradle*'
+- 'gradle/**'
+- '**/settings.gradle.*'
+- '**/build.gradle.*'
+- 'sjpp.jar'
+
+'m:source':
+- 'skin/**/*'
+- 'src/**/*'
+- 'stdlib/**/*'
+- 'svg/**/*'
+- 'test/**/*'
+- 'themes/**/*'
+- 'manifest.txt'
+
+'m:docker':
+- Dockerfile
+
+'m:native':
+- .github/workflows/native-image.yml

.github/workflows/labeler.yml

@@ -0,0 +1,12 @@
+name: "Pull Request Labeler"
+on:
+- pull_request_target
+
+jobs:
+  triage:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@v4