Manager: Fix Vitis Deployments that aren't running on localhost

[davidbiancolin]

I ran into two issues:

1. The xclbin was never actually copied to the remote (unless i'm missing something?)
2. The way xbutil reset was invoked was broken, because the result of examine would be captured on the remote and thus inaccessible to the manager.

Related PRs / Issues

None

UI / API Impact

None

Verilog / AGFI Compatibility

None

Contributor Checklist

• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you add Scaladoc/docstring/doxygen to every public function/method?
• Did you add at least one test demonstrating the PR?
• Did you delete any extraneous prints/debugging code?
• Did you state the UI / API impact?
• Did you specify the Verilog / AGFI compatibility impact?

• If applicable, did you regenerate and publicly share default AGFIs?

• If applicable, did you apply the ci:fpga-deploy label?

• If applicable, did you apply the Please Backport label?

Reviewer Checklist (only modified by reviewer)

Note: to run CI on PRs from forks, comment @Mergifyio copy main and manage the change from the new PR.

• Is the title suitable for inclusion in the changelog and does the PR have a changelog:<topic> label?
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[davidbiancolin]

Follow up: this doesn't appear to work on mill because the encoding of the string (i suspect) is wonky in such a way that the json deserializer breaks.