chore(deps): bump the pip group across 1 directory with 4 updates

Bumps the pip group with 4 updates in the / directory: [myst-parser](https://github.com/executablebooks/MyST-Parser), [sphinx](https://github.com/sphinx-doc/sphinx), [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) and [sphinx-autobuild](https://github.com/sphinx-doc/sphinx-autobuild).


Updates `myst-parser` from 3.0.1 to 4.0.0
- [Release notes](https://github.com/executablebooks/MyST-Parser/releases)
- [Changelog](https://github.com/executablebooks/MyST-Parser/blob/master/CHANGELOG.md)
- [Commits](executablebooks/MyST-Parser@v3.0.1...v4.0.0)

Updates `sphinx` from 6.2.1 to 8.1.3
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v6.2.1...v8.1.3)

Updates `sphinx-rtd-theme` from 2.0.0 to 3.0.1
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@2.0.0...3.0.1)

Updates `sphinx-autobuild` from 2024.4.16 to 2024.10.3
- [Release notes](https://github.com/sphinx-doc/sphinx-autobuild/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx-autobuild/blob/main/NEWS.rst)
- [Commits](sphinx-doc/sphinx-autobuild@2024.04.16...2024.10.03)

---
updated-dependencies:
- dependency-name: myst-parser
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: pip
- dependency-name: sphinx
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: pip
- dependency-name: sphinx-rtd-theme
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: pip
- dependency-name: sphinx-autobuild
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: pip
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -1,8 +1,8 @@
 ephys-link
-myst-parser==3.0.1
-sphinx==6.2.1
-sphinx-rtd-theme==2.0.0
-sphinx-autobuild==2024.4.16
+myst-parser==4.0.0
+sphinx==8.1.3
+sphinx-rtd-theme==3.0.1
+sphinx-autobuild==2024.10.3
 oursin
 nbsphinx
 sphinx-gallery