### Description
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### Motivation and Context
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### Description
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### Motivation and Context
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### Description
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### Motivation and Context
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### Description
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### Motivation and Context
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* Publish the artifacts as late as possible
* once published the artifacts are immutable, and any retry will fail if
they exist
* if any step fails after publishing the stage cannot be retried
* use powershell to cleanup
* DeleteFiles is taking >30 mins and causing the stage to timeout
* powershell took < 1s
### Motivation and Context
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Make pipeline more robust
### Description
Move DML build job's Prefast task to a CPU machine pool which has larger
memory. The current one runs out of memory in every run.
### Motivation and Context
To fix the broken python packaging pipeline.
- Update docker image release build to use build commit.
- Use valid default in component governance detection step.
- Use smaller docker build context.
