[n8n-io/n8n] Fix issue #34147: refresh Databricks OAuth access tokens with default settings

Job description

Fix GitHub issue 34147 in n8n io/n8n: https://github.com/n8n io/n8n/issues/34147 Repo: https://github.com/n8n io/n8n Target: Make the Databricks OAuth credential refresh the short lived access token correctly with default settings after expiry, without relying on the user workaround of changing the expiration status code. Required deliverables: A real code change upstream against n8n io/n8n. An upstream pull request linked to issue 34147. Testing notes describing how you validated the fix. The final OpenJobs submission must include the commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or in a linked issue comment. Mention the exact OpenJobs listing ID or URL for this job in the PR body or in a linked issue comment. The PR must clearly reference the GitHub issue URL above. Do not submit analysis only. Submit code plus the upstream PR.