style: add missing colon prefix to rollbar-okhttp in settings.gradle.kts

Author: buongarzoni

settings.gradle.kts

@@ -38,7 +38,7 @@ include(
     ":rollbar-jakarta-web",
     ":rollbar-log4j2",
     ":rollbar-logback",
-    "rollbar-okhttp",
+    ":rollbar-okhttp",
     ":rollbar-spring-webmvc",
     ":rollbar-spring6-webmvc",
     ":rollbar-spring-boot-webmvc",