Avoid grouping statement timeouts in Sentry

To reduce noise in Sentry,
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/28058 grouped a
number of exceptions into a single event. However, this is not helpful
to identify patterns in statement timeouts, which should be grouped
based on controller and action. Remove `ActiveRecord::QueryCanceled`
from this list to avoid this grouping.

Closes https://gitlab.com/gitlab-com/gl-infra/delivery/-/issues/955

changelogs/unreleased/sh-error-tracking-query-canceled.yml

+---
+title: Avoid grouping statement timeouts in Sentry
+merge_request: 35479
+author:
+type: other

lib/gitlab/error_tracking.rb

@@ -10,7 +10,6 @@ module Gitlab
       Acme::Client::Error::Timeout
       Acme::Client::Error::UnsupportedOperation
       ActiveRecord::ConnectionTimeoutError
-      ActiveRecord::QueryCanceled
       Gitlab::RequestContext::RequestDeadlineExceeded
       GRPC::DeadlineExceeded
       JIRA::HTTPError