v90 release prep (#948)

https://datadoghq.atlassian.net/browse/SVLS-8080

## Overview
v90 release prep

## Testing 
n/a

Author: litianningdatadog

bottlecap/src/tags/lambda/tags.rs

@@ -45,7 +45,7 @@ const FUNCTION_TAGS_KEY: &str = "_dd.tags.function";
 // TODO(astuyve) decide what to do with the version
 const EXTENSION_VERSION_KEY: &str = "dd_extension_version";
 // TODO(duncanista) figure out a better way to not hardcode this
-pub const EXTENSION_VERSION: &str = "89-next";
+pub const EXTENSION_VERSION: &str = "90-next";
 
 const REGION_KEY: &str = "region";
 const ACCOUNT_ID_KEY: &str = "account_id";