Update CODEOWNERS (#1391)

Co-authored-by: LocalStack Bot <localstack-bot@users.noreply.github.com>

Author: localstack-bot

CODEOWNERS

@@ -45,6 +45,9 @@
 # athena
 /content/en/user-guide/aws/athena/ @alexrashed
 
+# autoscaling
+/content/en/user-guide/aws/autoscaling/ @viren-nadkarni
+
 # batch
 /content/en/user-guide/aws/batch/ @pinzon @simonrw
 
@@ -168,6 +171,9 @@
 # sagemaker
 /content/en/user-guide/aws/sagemaker/ @silv-io @lukqw
 
+# scheduler
+/content/en/user-guide/aws/scheduler/ @joe4dev
+
 # secretsmanager
 /content/en/user-guide/aws/secretsmanager/ @dominikschubert @macnev2013 @MEPalma