Migrate from Gitea Actions to GitHub Actions

.github/renovate.json

@@ -0,0 +1,16 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:recommended", ":disableDependencyDashboard"],
+  "assignees": ["valentineus"],
+  "labels": ["dependencies", "automated"],
+  "packageRules": [
+    {
+      "description": "Group patch & minor updates together",
+      "groupName": "all digest updates",
+      "groupSlug": "all-digest",
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "matchPackageNames": ["*"],
+      "automerge": true
+    }
+  ]
+}