Remove regex character from compose compiler prefix

Renovate doesn't correctly treat compose compiler as kotlin dependency. 
Given this used to work, it's possible that they changed the implementation and it doesn't allow the regex chars anymore.

Author: mlykotom

.github/renovate.json

@@ -11,7 +11,7 @@
       "groupName": "Kotlin Dependencies",
       "matchPackagePrefixes": [
         "org.jetbrains.kotlin",
-        "^androidx.compose.compiler"
+        "androidx.compose.compiler"
       ]
     }
   ]