Use rangers sponsor features (#1086)

* use rangers sponsor features

* remove  .github/workflows/label-sponsors.yml

* add priority:high to list

.github/ranger.yml

@@ -27,3 +27,7 @@ commits:
     pattern: 'upgrade dep'
     labels:
       - maintenance
+
+sponsor_labels:
+  - sponsor
+  - priority:high

.github/workflows/label-sponsors.yml

@@ -1,14 +0,0 @@
-name: Label sponsors
-on:
-  pull_request:
-    types: [opened]
-  issues:
-    types: [opened]
-jobs:
-  build:
-    name: is-sponsor-label
-    runs-on: ubuntu-latest
-    steps:
-      - uses: JasonEtco/is-sponsor-label-action@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}