chore: bump snapshot version to 0.11.6-SNAPSHOT

Author: aws-sdk-kotlin-ci

gradle.properties

@@ -7,4 +7,4 @@ kotlin.daemon.jvmargs=-Xmx6g -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.jvmargs=-Xmx2G -XX:MaxMetaspaceSize=1G
 
 # aws-crt-kotlin
-sdkVersion=0.11.5
+sdkVersion=0.11.6-SNAPSHOT