Migrate config renovate.json (#19)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

renovate.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:base",
+    "config:recommended",
     "group:all",
     ":dependencyDashboard",
     "schedule:weekly"
@@ -14,27 +14,27 @@
   ],
   "packageRules": [
     {
-      "matchPackagePrefixes": [
-        "dev.drewhamilton.poko",
-        "org.jetbrains.kotlin"
-      ],
-      "groupName": "kotlin"
+      "groupName": "kotlin",
+      "matchPackageNames": [
+        "dev.drewhamilton.poko{/,}**",
+        "org.jetbrains.kotlin{/,}**"
+      ]
     },
     {
-      "matchPackagePrefixes": [
-        "io.ktor"
-      ],
       "matchCurrentValue": "2.*",
       "allowedVersions": "<3.0.0",
-      "groupName": "ktor2"
+      "groupName": "ktor2",
+      "matchPackageNames": [
+        "io.ktor{/,}**"
+      ]
     },
     {
-      "matchPackagePrefixes": [
-        "io.ktor"
-      ],
       "matchCurrentValue": "3.*",
       "allowedVersions": ">=3.0.0",
-      "groupName": "ktor3"
+      "groupName": "ktor3",
+      "matchPackageNames": [
+        "io.ktor{/,}**"
+      ]
     }
   ]
-}
+}