when storing job with replace check update count returned

[t-beckmann]

This is to detect non-durable job suddenly disappearing when concurrently completing. On MariaDB/MySQL the fall-through code path select-update-insert can be taken due to consistent nonblocking read and multi-version concurrency control.

This PR...

Fixes issue #1085

Changes

The code change checks the update count returned when storing a job.

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Checklist

• [x] tested locally
• [x] updated the docs (not applicable, bug fix only)
• [x] added appropriate test (not applicable, storeJob method covered in tests already)
• [x] signed-off on the DCO referenced in the CONTRIBUTING link below via git commit -s on my commits, and submit this code under terms of the Apache 2.0 license and assign copyright to the Quartz project owners

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In submitting this contribution, I agree to the terms of contributing as referred to here: https://github.com/quartz-scheduler/contributing/blob/main/CONTRIBUTING.md

[t-beckmann]

This reopens https://github.com/quartz-scheduler/quartz/pull/1086 acknowledging the change of ownership. Best regards.

[jhouserizer]

Thank you.