chore: restrict spring plugin deps

Author: AlexanderPrendota

renovate.json

@@ -15,6 +15,7 @@
     "org.jetbrains.kotlin:core",
     "org.jetbrains.kotlin:common",
     "org.jetbrains.kotlin:kotlin-stdlib-jdk7",
-    "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+    "org.jetbrains.kotlin:kotlin-stdlib-jdk8",
+    "org.jetbrains.kotlin.plugin.spring"
   ]
 }