ci: add pr labeler (#271)

Author: erezrokah

.github/workflows/labeler.yml

@@ -0,0 +1,30 @@
+name: Label PR
+on:
+  pull_request:
+    types: [opened, edited]
+
+jobs:
+  label-pr:
+    if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.fork == false
+    runs-on: ubuntu-latest
+    steps:
+      - uses: erezrokah/pr-labeler-action@v1.0.0
+        if: startsWith(github.event.pull_request.title, 'fix')
+        with:
+          token: '${{ secrets.GITHUB_TOKEN }}'
+          label: 'type: bug'
+      - uses: erezrokah/pr-labeler-action@v1.0.0
+        if: startsWith(github.event.pull_request.title, 'chore') || startsWith(github.event.pull_request.title, 'ci')
+        with:
+          token: '${{ secrets.GITHUB_TOKEN }}'
+          label: 'type: chore'
+      - uses: erezrokah/pr-labeler-action@v1.0.0
+        if: startsWith(github.event.pull_request.title, 'feat')
+        with:
+          token: '${{ secrets.GITHUB_TOKEN }}'
+          label: 'type: feature'
+      - uses: erezrokah/pr-labeler-action@v1.0.0
+        if: startsWith(github.event.pull_request.title, 'security')
+        with:
+          token: '${{ secrets.GITHUB_TOKEN }}'
+          label: 'type: security'