Update debian to fix CI (facebook#34634)

Summary:
The keys of the current debian version expired again. This PR is an attempt to use a different version

## Changelog

[General] [Fixed] - Update debian version

Pull Request resolved: facebook#34634

Test Plan: CircleCI is green

Reviewed By: sammy-SC

Differential Revision: D39350344

Pulled By: cipolleschi

fbshipit-source-id: 6c77cc60cbc56a9fe8362ffa0472f96bce58b28e

.circleci/config.yml

@@ -943,7 +943,7 @@ jobs:
   # -------------------------
   prepare_hermes_workspace:
     docker:
-      - image: debian:11.4
+      - image: debian:11
     environment:
       - HERMES_WS_DIR: *hermes_workspace_root
       - HERMES_VERSION_FILE: "sdks/.hermesversion"