Update numpydoc requirement from ~=1.6 to ~=1.7 (#169)

Updates the requirements on [numpydoc](https://github.com/numpy/numpydoc) to permit the latest version.
- [Release notes](https://github.com/numpy/numpydoc/releases)
- [Changelog](https://github.com/numpy/numpydoc/blob/main/RELEASE.rst)
- [Commits](numpy/numpydoc@v1.6.0...v1.7.0)

---
updated-dependencies:
- dependency-name: numpydoc
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements-docs.txt

@@ -10,7 +10,7 @@
 # It only exists to keep the list of dependencies in a separate file from
 # setup.py.
 ipython ~=7.34.0
-numpydoc ~=1.6
+numpydoc ~=1.7
 sphinx ~=7.2.6
 sphinx-copybutton ~=0.5.2
 sphinx_rtd_theme ~=2.0.0