Add 2027 labeler (#765)

Author: sciencewhiz

.github/labeler.yml

@@ -0,0 +1,2 @@
+'2027':
+- base-branch: '2027'

.github/workflows/labeler.yml

@@ -0,0 +1,14 @@
+name: "Pull Request Labeler"
+on:
+  - pull_request_target
+
+jobs:
+  labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/labeler@v5
+        with:
+          sync-labels: true