feat: Add label syncing. (#30)

* ci: Add label syncing

* ci: add more label sprinkles

.github/workflows/labelsync.yml

@@ -0,0 +1,21 @@
+name: Label Sync
+
+on:
+  issues:
+  label:
+  push:
+    branches:
+      - maser
+    paths:
+      - '.github/labels.yml'
+
+jobs:
+  labeler:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Project
+        uses: actions/checkout@v2
+      - name: Run Label Sync
+        uses: crazy-max/ghaction-github-labeler@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}