Update dependency pdm-backend to v2.3.0

[RKIMetadataExchange]

This PR contains the following updates:

Package	Type	Update	Change
pdm-backend	build-system.requires	minor	==2.1.8 -> ==2.3.0

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Release Notes

pdm-project/pdm-backend (pdm-backend)

v2.3.0

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   🚀 Features

• Remove support for python 3.7 and older  -  by @​frostming in https://github.com/pdm-project/pdm-backend/issues/232 (32e3a)
• Add tag_filter as a way to pre-filter tags  -  by @​mezuzza in https://github.com/pdm-project/pdm-backend/issues/225 (9915c)

   🐞 Bug Fixes

• Error about dynamic project version  -  by @​cntvc in https://github.com/pdm-project/pdm-backend/issues/235 (146b1)
• ci: CI matrix on macos latest  -  by @​frostming (080b4)

   💻 Chores

• Use Literal type for valid target values  -  by @​DetachHead, pre-commit-ci[bot] and Frost Ming in https://github.com/pdm-project/pdm-backend/issues/227 (a210b)

    View changes on GitHub

v2.2.1

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   🚀 Features

• Add parameter --build-number to wheel builder  -  by @​0xfabioo and Frost Ming in https://github.com/pdm-project/pdm-backend/issues/229 (d7d15)
• Bump pyproject-metadata to 0.8.0  -  by @​frostming in https://github.com/pdm-project/pdm-backend/issues/231 (5f538)

    View changes on GitHub

v2.2.0

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   🚀 Features

• Don't add '+editable' to the editable version  -  by @​frostming (e6fcd)
• Custom version format for source="scm"  -  by @​frostming in https://github.com/pdm-project/pdm-backend/issues/217 (4f20c)
• Fallback_version config for scm version  -  by @​frostming (8b8ab)
• vendor: Update packaging to 24.0  -  by @​frostming (81836)
• vendors: Update pyproject-metadata to 0.8.0rc1  -  by @​frostming in https://github.com/pdm-project/pdm-backend/issues/228 (6b260)

   🐞 Bug Fixes

• Change to datetime.now(tz=UTC)  -  by @​frostming (74f7a)

   📝 Documentation

• Add missing dep  -  by @​frostming (feb9f)

   💻 Chores

• Update lockfile to the latest version  -  by @​frostming (940d1)

    View changes on GitHub

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