Update dependency pdm to v2.15.4

[RKIMetadataExchange]

This PR contains the following updates:

Package	Update	Change
pdm (changelog)	patch	==2.15.3 -> ==2.15.4

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Release Notes

pdm-project/pdm (pdm)

v2.15.4

Compare Source

Bug Fixes

• Build wheel from sdist if available, to make sure sdist is built properly. This behavior is consistent with pypa/build. (#​2843)
• Fix the issue of self-referencing extra dependencies failing to be resolved for local packages. (#​2898)
• Fix an issue of max recursion depth error when parsing a poetry project with circular dependencies on local packages. (#​2900)
• Fix a bug that VCS dependencies and --self don't work in the exported requirements.txt with hashes. (#​2908)
• Fix a cache miss when there exist built wheels for a given link. (#​2912)
• Don't try to store caches when --no-cache is given. (#​2913)

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This PR has been generated by Renovate Bot.

[cutoffthetop]

cf #68