chore: create seperate renovate PRs (#2813)

This should split out Java and Javascript updates to make the resulting
PRs easier to manage.

The current PRs can end up with multiple cross ecosystem issues that
require more colaberation to fully resolve.

renovate.json5

@@ -9,6 +9,12 @@
     "group:allNonMajor",
     "schedule:earlyMondays",
   ],
+  "js": {
+    "managerBranchPrefix": "js-"
+  },
+  "java": {
+    "managerBranchPrefix": "java-"
+  },
   lockFileMaintenance: {
     enabled: true, // Automatically update lock files like pnpm-lock.yaml
   },