bugfix: new slices not running post_boot_config() on submit

[scauligi]

Looks like a simple logic bug, the original code was gating post_boot_config() behind advance_allocation instead of not advance_allocation

[github-actions[bot]]

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[kthare10]

@scauligi - Could you please sign your commits using the steps indicated above?

[coveralls]

Pull Request Test Coverage Report for Build 10048147937

Details

• 0 of 1 (0.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 17.504%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
fabrictestbed_extensions/fablib/slice.py	0	1	0.0%
<!--	Total:	0	1	0.0%	-->

Totals
Change from base Build 10048084488:	0.0%
Covered Lines:	1350
Relevant Lines:	5585

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💛 - Coveralls

[kthare10]

This change was pushed via https://github.com/fabric-testbed/fabrictestbed-extensions/pull/353 So closing this PR.