gitalyClientRetries: Make value configurable in the Helm Chart
## Expose new configurable field in Helm chart ### Description Following the completion of [issue #584430](https://gitlab.com/gitlab-org/gitlab/-/issues/584430) which makes the Gitaly client retries configurable, we need to expose this newly configurable field in the Helm chart to allow users to configure it during deployment. ### Acceptance Criteria - [ ] Add the new configurable field to the appropriate Helm chart values - [ ] Update chart templates to use the new configuration value - [ ] Ensure proper default values are set - [ ] Update chart documentation to reflect the new configuration option ### Dependencies - Blocked by: https://gitlab.com/gitlab-org/gitlab/-/issues/584430 *** _Description was generated using AI_
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