ci: split Gitea and GitHub workflows

.github/workflows/actions-security.yml

@@ -0,0 +1,35 @@
+name: GitHub Actions Security
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  schedule:
+    - cron: "11 3 * * 1"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  zizmor:
+    name: zizmor
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+      actions: read
+      security-events: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
+        with:
+          persist-credentials: false
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@cc914d7f3750a2d13d75c7f184a1060aa0e9d482 # v0.6.4
+        with:
+          persona: regular
+          inputs: |
+            .github/workflows
+            .gitea/workflows