feat(postgres): add support for lock_timeout

[suonto]

please see #15345.

Pull Request Checklist

• Have you added new tests to prevent regressions?
• If a documentation update is necessary, have you opened a PR to the documentation repository?
• Did you update the typescript typings accordingly (if applicable)?
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Description Of Change

Please see linked issue.

Todos

[suonto]

@WikiRik this actually won't work because in v6 pg is still at 8.7.1. Do you think it's acceptable to upg pg for version 6 as well?

[WikiRik]

I think since we're not specifying it in the tests it should not fail. Users can install a newer version of pg to use this, the pg version is not managed by us since it's a peerDependency.

[github-actions]

🎉 This PR is included in version 6.26.0 🎉

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