Currently, if the OAuth tokens used for a Bitbucket integration are refreshed, any existing CI job will not adopt the newly authorized token. In fact, there is no way to even edit the job to use the new credentials; the job must be completely deleted and created anew.

However, in the case of Salesforce OAuth tokens, Gearset already has a Reauthorize button, along with facilities for re-associating the new credentials with saved orgs and saved CI jobs. Please enable similar reauthorization mecahnics and credential saving for other Oauth integrations, especially Bitbucket Server, so that CI jobs will not need to be recreated.