chore: prepare 0.7.7 snapshot (#573)

Author: aajtodd

gradle.properties

@@ -5,7 +5,7 @@ kotlin.mpp.stability.nowarn=true
 kotlin.native.ignoreDisabledTargets=true
 
 # SDK
-sdkVersion=0.7.6
+sdkVersion=0.7.7-SNAPSHOT
 
 # kotlin
 kotlinVersion=1.6.10