Add a workflow lint so that we don't reintroduce problems in workflows

or actions

- Remove unused dependabot.yml

Author: kategengler

.github/dependabot.yml

@@ -0,0 +1,24 @@
+name: Workflow Lint
+
+on:
+  push:
+    branches: 
+      - main
+  pull_request:
+
+permissions: {}
+
+jobs:
+  zizmor:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Run zizmor 🌈
+        uses: zizmorcore/zizmor-action@0dce2577a4760a2749d8cfb7a84b7d5585ebcb7d # v0.5.0
+        with:
+          advanced-security: false
+          inputs: .github/