Clean up CODEOWNERS for .github/ (pytorch#69395)

Summary:
Cleans up the CODEOWNERS file to reflect current team

Pull Request resolved: pytorch#69395

Test Plan: yeah_sandcastle

Reviewed By: anjali411

Differential Revision: D32885237

Pulled By: seemethere

fbshipit-source-id: a465f2cd0e27d5e53f5af5769d1cad47ec5348e7

Author: seemethere

CODEOWNERS

@@ -44,7 +44,7 @@
 # Github Actions
 # This list is for people wanting to be notified every time there's a change
 # related to Github Actions
-/.github/ @seemethere @janeyx99 @zhouzhuojie @driazati
+/.github/ @seemethere @janeyx99 @atalman
 
 # Parametrizations
 /torch/nn/utils/parametriz*.py @lezcano