[client-python] chore(deps): update dependency build to >=1.4.0,<1.5.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
build (changelog)	>=1.3.0,<1.4.0 → >=1.4.0,<1.5.0

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Release Notes

pypa/build (build)

v1.4.0

Compare Source

==================

• Add --quiet flag
  (:pr:947)
• Add option to dump PEP 517 metadata with --metadata
  (:pr:940, :pr:943)
• Support UV environment variable
  (:pr:971)
• Remove a workaround for 3.14b1
  (:pr:960)
• In 3.14 final release, color defaults to True already
  (:pr:962)
• Pass sp-repo-review
  (:pr:942)
• In pytest configuration, log_level is better than log_cli_level
  (:pr:950)
• Split up typing and mypy
  (:pr:944)
• Use types-colorama
  (:pr:945)
• In docs, first argument for _has_dependency is a name
  (PR :pr:970)
• Fix test failure when flit-core is installed
  (PR :pr:921)

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