fix: populate logData() map in JoinExistingMLSConversationUseCase (#3850)

The buildMap block used infix 'to' which creates Pairs but does not
insert them into the map. All structured join log lines (Success,
Failure, Ignored, Reset) emitted empty JSON {}, making it impossible
to correlate errors to specific conversations from logs.

Replace 'key to value' with put(key, value).

Author: mastaab

logic/src/commonMain/kotlin/com/wire/kalium/logic/data/conversation/JoinExistingMLSConversationUseCase.kt

@@ -251,10 +251,10 @@ internal class JoinExistingMLSConversationUseCaseImpl(
     private fun Conversation.logData(
         failure: CoreFailure? = null
     ): Map<String, Any> = buildMap {
-        "conversationId" to id.toLogString()
-        "conversationType" to type
-        "protocol" to CreateConversationParam.Protocol.MLS.name
-        "protocolInfo" to protocol.toLogMap()
-        failure?.run { "errorInfo" to "$failure" }
+        put("conversationId", id.toLogString())
+        put("conversationType", type)
+        put("protocol", CreateConversationParam.Protocol.MLS.name)
+        put("protocolInfo", protocol.toLogMap())
+        failure?.let { put("errorInfo", "$it") }
     }
 }