fix: remove containers from workflow to fix Node.js compatibility

- Run directly on ubuntu-latest instead of custom containers
- Download git-cliff binary from GitHub releases
- Add Renovate custom manager for automatic git-cliff updates

renovate.json

@@ -2,5 +2,16 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "customManagers": [
+    {
+      "customType": "regex",
+      "fileMatch": ["^\\.gitea/workflows/.*\\.ya?ml$"],
+      "matchStrings": [
+        "GIT_CLIFF_VERSION:\\s*[\"']?(?<currentValue>[^\"'\\s]+)[\"']?"
+      ],
+      "depNameTemplate": "orhun/git-cliff",
+      "datasourceTemplate": "github-releases"
+    }
   ]
 }