Bump OpenPIV version to 0.25.4 and align release metadata

[Copilot]

This PR prepares the 0.25.4 release by updating package and documentation version metadata used by build/release tooling. It aligns all in-repo version declarations to prevent mixed-version artifacts during tagging and publish.

• Release version bump

  • Updated Poetry package version in pyproject.toml to 0.25.4.
  • Updated setuptools version in setup.py to 0.25.4.

• Documentation version alignment

  • Updated Sphinx docs version in openpiv/docs/conf.py to 0.25.4 so rendered docs reflect the same release version.

• Resulting release behavior

  • Keeps package metadata and docs metadata consistent for the 0.25.4 tag/release path (including existing GitHub Actions release workflow triggers).

# pyproject.toml
[tool.poetry]
version = "0.25.4"

---

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[Copilot]

Pull request overview

Prepares the OpenPIV 0.25.4 release by aligning in-repo version metadata across packaging (Poetry + setuptools) and Sphinx documentation configuration to avoid mixed-version artifacts during release/publish.

Changes:

• Bumped Poetry package version to 0.25.4 in pyproject.toml.
• Bumped setuptools package version to 0.25.4 in setup.py.
• Updated Sphinx docs version string in openpiv/docs/conf.py to 0.25.4.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
setup.py	Updates setuptools package version to 0.25.4.
pyproject.toml	Updates Poetry package version to 0.25.4.
openpiv/docs/conf.py	Updates Sphinx documentation version metadata.

[Copilot]

In Sphinx, version is intended to be the short X.Y string (as the comment above indicates) and release should carry the full version (including patch / pre-release tags). Setting version = '0.25.4' while leaving release commented out makes the config inconsistent and can lead to odd version display/templating; consider setting version = '0.25' and uncommenting/updating release = '0.25.4'.

Suggested change

	version = '0.25.4'
	# The full version, including alpha/beta/rc tags.
	# release = '0.0.1a'
	version = '0.25'
	# The full version, including alpha/beta/rc tags.
	release = '0.25.4'