Merge branch '32382-update-gitlab-shell-config' into 'master'

Update gitlab-shell config for HPA and maxReplicas

Closes #32382

See merge request gitlab-org/gitlab!17359

scripts/review_apps/base-config.yaml

@@ -40,6 +40,9 @@ gitlab:
       limits:
         cpu: 140m
         memory: 40M
+    maxReplicas: 3
+    hpa:
+      targetAverageValue: 130m
   sidekiq:
     resources:
       requests: