chore: update renovate config (#1532)

* chore(deps): update dependency importlib-metadata to v5.1.0

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* chore: update renovate config

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

Author: 3 people

packages/gapic-generator/renovate.json

@@ -1,7 +1,11 @@
 {
   "extends": [
       "config:base",
-      "docker:disable",
-      ":disableDependencyDashboard"
+      "group:all",
+      ":disableDependencyDashboard",
+      "schedule:weekly"
+  ],
+  "ignorePaths": [
+    ".kokoro/requirements.txt"
   ]
 }