Use a new branch for quing the TestPipeline, this should prevent chec…

[chidozieononiwu]

Use a new branch for queueing the TestPipeline, this should prevent template checks from showing up on eng/common Sync PRs.
Add step tp clean up upstream branches used during the sync run.
Add retry logic to the verify and merge stage.

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[azure-sdk]

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[azure-sdk]

The following pipelines have been queued for testing:
java - template
js - template
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You can sign off on the approval gate to test the release stage of each pipeline.
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[azure-sdk]

The following pipelines have been queued for testing:
java - template
js - template
net - template
python - template
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[azure-sdk]

The following pipelines have been queued for testing:
java - template
js - template
net - template
python - template
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[azure-sdk]

The following pipelines have been queued for testing:
java - template
js - template
net - template
python - template
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[azure-sdk]

The following pipelines have been queued for testing:
java - template
js - template
net - template
python - template
You can sign off on the approval gate to test the release stage of each pipeline.
See eng/common workflow

[ghost]

Hello @azure-sdk!

Because this pull request has the auto-merge label, I will be glad to assist with helping to merge this pull request once all check-in policies pass.

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