Add metric for cancelling project imports
<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=387474) </details> <!--IssueSummary end--> ### Problem We added functionality for cancelling project imports, but there's no easy way to observe how often this functionality is used. ### Proposed solution Add metric that will enable to make a chart on Sisense to observe how often the cancel functionality is used.
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