Update dependency pdm to v2.16.1

[RKIMetadataExchange]

This PR contains the following updates:

Package	Update	Change
pdm (changelog)	minor	==2.15.4 -> ==2.16.1

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Release Notes

pdm-project/pdm (pdm)

v2.16.1

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Bug Fixes

• Fix new interface from pbs_installer regarding build_dir and best match auto-install strategy for pdm use
  (same as for pdm python install --list) (#​2943)
• Fix crash when pdm is used with importlib-metadata version 8.0. (#​2974)

v2.16.0

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Features & Improvements

• Add --no-extras to pdm export to strip extras from the requirements. Now the default behavior is to keep extras. (#​2519)
• Support PEP 723: running scripts with inline metadata in standalone environment with dependencies. (#​2924)
• pdm use and pdm python install now take requires-python into account (incl. from pyproject.toml) if python version
  not specified and pdm use provides auto installation by that. (#​2943)
• --no-isolation no longer installs build-requires nor dynamic build dependencies, to be consistent with pip. (#​2944)
• Add notifiers in CLI output when global project is being used. (#​2952)
• Use tool.pdm.resolution table when calculating the content hash of project file, previously only overrides table was used.
  This will change the hash already stored in the lockfile, so bump the lockfile version to 4.4.2. (#​2956)

Bug Fixes

• Add max retries on read timeout or bad connection. (#​2914)
• Don't update local files if they don't change. (#​2966)
• Don't list python versions that don't have any installation link for the current platform. (#​2970)

Documentation

• Clarify the purposes of pdm outdated and --unconstrained option. (#​2965)
• Some clarifications on the interpreter selection and central package cache. (#​2967)

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