Chore: Ignore copy-webpack-plugin updates in toolkit (#40812)

* Chore(dependencies): Ignore updates to copy-webpack-plugin in @grafana/toolkit for now

* Chore(dependencies): Ignore updates to css-loader in @grafana/toolkit for now

Co-authored-by: Gábor Farkas <gabor.farkas@gmail.com>

.github/renovate.json5

@@ -17,6 +17,15 @@
   "minor": {
     "enabled": false
   },
+  "packageRules": [
+    {
+      "matchPaths": ["grafana-toolkit/package.json"],
+      "ignoreDeps": [
+        "copy-webpack-plugin", // need to wait for Grafana 9 to upgrade toolkit to webpack 5
+        "css-loader", // need to wait for Grafana 9 to upgrade toolkit to webpack 5        
+      ]
+    }
+  ],
   "patch": {
     "enabled": false
   },