Use master for documentation release to align it with coroutines and serialization

Author: whyoleg

.teamcity/BuildParams.kt

@@ -20,7 +20,7 @@ object BuildParams {
   const val KOTLINX_DATETIME_ID = "kotlinx-datetime"
   const val KOTLINX_DATETIME_TITLE = KOTLINX_DATETIME_ID
 
-  const val KOTLINX_IO_RELEASE_TAG = "whyoleg/dokka2-sync"
+  const val KOTLINX_IO_RELEASE_TAG = "master"
   const val KOTLINX_IO_RELEASE_LABEL = "0.7.0"
   const val KOTLINX_IO_ID = "kotlinx-io"
   const val KOTLINX_IO_TITLE = KOTLINX_IO_ID