Renovate: Couple Kotlin tooling with Kotlin language version updates (#…

…89)

renovate.json5

@@ -2,5 +2,17 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:base"
-  ]
+  ],
+  "packageRules": [
+    {
+      // Compiler plugins are tightly coupled to Kotlin version
+      "groupName": "Kotlin",
+      "matchPackagePrefixes": [
+        "androidx.compose.compiler",
+        "dev.drewhamilton.poko",
+        "org.jetbrains.kotlin",
+        "org.jetbrains.kotlinx:binary-compatibility-validator",
+      ],
+    },
+  ],
 }