GitHub build workflows (#204)

.github/workflows/mapbase_pr.yml

@@ -0,0 +1,23 @@
+#
+# MAPBASE REPO AUTOMATION
+#
+# Automatically labels pull requests according to changed file paths.
+# See mapbase_triage-pr.yml for more information.
+#
+# https://github.com/actions/labeler
+
+name: Pull Request Automation
+on: [pull_request]
+
+jobs:
+  label:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+    - uses: actions/labeler@v4
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"