Update dependency pdm to v2.20.0.post1

[RKIMetadataExchange]

This PR contains the following updates:

Package	Update	Change
pdm (changelog)	minor	==2.19.3 -> ==2.20.0.post1

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Release Notes

pdm-project/pdm (pdm)

v2.20.0.post1

Compare Source

Features & Improvements

• Support dependency groups as standardized by PEP 735. By default, dev dependencies will be written to [dependency-groups] table. (#​3230)

Bug Fixes

• Fix a bug that strategy.inherit_metadata config is not honored when using --lockfile option. (#​3232)
• Always perform install-time resolution when use_uv is on. (#​3233)

Miscellany

• Update resolvelib to 1.1.0. (#​3235)

v2.20.0

Compare Source

Features & Improvements

• Support dependency groups as standardized by PEP 735. By default, dev dependencies will be written to [dependency-groups] table. (#​3230)

Bug Fixes

• Fix a bug that strategy.inherit_metadata config is not honored when using --lockfile option. (#​3232)
• Always perform install-time resolution when use_uv is on. (#​3233)

Miscellany

• Update resolvelib to 1.1.0. (#​3235)

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