Temporarily allow issue-bot to fail
## Context
From a conversation between @dat.tang.gitlab and @dmakovey :
> This `issue-bot` [job](https://dev.gitlab.org/gitlab/charts/components/images/-/jobs/35061719) in the CNG pipeline failed with the error
>
> ```
> 2026/03/18 15:14:26 unable to create GitLab client(s): please configure "ISSUE_BOT_API_TOKEN" or "ISSUE_BOT_API_TOKEN_FILE" environment variable
> ```
> we (Build) need to fix configuration and get tokens organized to not have it fail. HOWEVER having it `allow_failure: true` is not a bad idea for `issue_bot` jobs
This issue is created to note that we temporarily allow issue-bot to fail
issue