build(deps): bump pytest-doctestplus from 1.6.0 to 1.7.0 in /requirements (#21483)

build(deps): bump pytest-doctestplus in /requirements

Bumps [pytest-doctestplus](https://github.com/scientific-python/pytest-doctestplus) from 1.6.0 to 1.7.0.
- [Release notes](https://github.com/scientific-python/pytest-doctestplus/releases)
- [Changelog](https://github.com/scientific-python/pytest-doctestplus/blob/main/CHANGES.rst)
- [Commits](https://github.com/scientific-python/pytest-doctestplus/compare/v1.6.0...v1.7.0)

---
updated-dependencies:
- dependency-name: pytest-doctestplus
  dependency-version: 1.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>