chore: bump snapshot version to 1.8.5-SNAPSHOT

Author: aws-sdk-kotlin-ci

gradle.properties

@@ -7,7 +7,7 @@ org.gradle.jvmargs=-Xmx10g -XX:MaxMetaspaceSize=2G
 org.gradle.parallel=true
 
 # sdk
-sdkVersion=1.8.4
+sdkVersion=1.8.5-SNAPSHOT
 
 # atomicfu
 kotlinx.atomicfu.enableJvmIrTransformation=true