ci: add pr auto-labelling workflow

Author: spwoodcock

.github/labeler.yml

@@ -0,0 +1,13 @@
+"devops":
+  - ".github/**/*"
+  - "Dockerfile"
+  - "pyproject.toml"
+  - "pdm.lock"
+  - "*entrypoint.sh"
+  - "Makefile"
+"documentation":
+  - "docs/**/*"
+  - "mkdocs.yml"
+  - "README.md"
+"version":
+  - "osm_rawdata/__version__.py"

.github/workflows/pr_label.yml

@@ -0,0 +1,14 @@
+name: PR Label
+
+on:
+  pull_request:
+
+jobs:
+  pr-label:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/labeler@v3
+        # Uses .github/labeler.yml definitions
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}