fix: replace deprecated poetry lock

[kenibrewer]

PR Checklist

• A description of the changes is added to the description of this PR.
• If there is a related issue, make sure it is linked to this PR.
• If you've fixed a bug or added code that should be tested, add tests! (Not relevant)
• Documentation in docs is updated (Not relevant)

Description of changes

This minor change replaces the deprecated poetry lock --check with the new command poetry check --lock.

This will resolve the following warning that currently appears when using make check.

> make check
🚀 Checking Poetry lock file consistency with 'pyproject.toml': Running poetry lock --check
poetry lock --check is deprecated, use `poetry check --lock` instead.
poetry.lock is consistent with pyproject.toml.
...

[fpgmaas]

Thanks for the contribution @kenibrewer! Could you change it here as well?

[kenibrewer]

@fpgmaas Done. Thanks for pointing that out!

[codecov]

Codecov Report

Merging #98 (8556418) into main (49756a7) will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##            main     #98   +/-   ##
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  Coverage   0.00%   0.00%           
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  Files          1       1           
  Lines          5       5           
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  Misses         5       5