chore: add labeler (#9)

Author: kangju2000

.github/labeler.yml

@@ -0,0 +1,19 @@
+cli:
+  - 'packages/cli/**/*'
+
+core:
+  - 'packages/core/**/*'
+
+documentation:
+  - '**/*.md'
+  - '**/*.mdx'
+
+github-actions:
+  - '.github/workflows/**/*'
+
+dependencies:
+  - 'package.json'
+  - 'pnpm-lock.yaml'
+  - '**/package.json'
+
+

.github/workflows/labeler.yml

@@ -0,0 +1,17 @@
+name: "Pull Request Labeler"
+
+on:
+  - pull_request_target
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  triage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@v5
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
+          sync-labels: true