Bump the python group

Bumps the python group in /smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx with 3 updates: [sphinx](https://github.com/sphinx-doc/sphinx), [pygments](https://github.com/pygments/pygments) and [myst-parser](https://github.com/executablebooks/MyST-Parser).


Updates `sphinx` from 8.1.3 to 8.2.3
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v8.1.3...v8.2.3)

Updates `pygments` from 2.19.1 to 2.19.2
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.19.1...2.19.2)

Updates `myst-parser` from 4.0.0 to 4.0.1
- [Release notes](https://github.com/executablebooks/MyST-Parser/releases)
- [Changelog](https://github.com/executablebooks/MyST-Parser/blob/master/CHANGELOG.md)
- [Commits](executablebooks/MyST-Parser@v4.0.0...v4.0.1)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-version: 8.2.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python
- dependency-name: pygments
  dependency-version: 2.19.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python
- dependency-name: myst-parser
  dependency-version: 4.0.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python
...

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

Author: dependabot[bot]

smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx/requirements-base.txt

@@ -1,6 +1,6 @@
 # These are base requirements needed for any sphinx project output.
-Sphinx==8.1.3
+Sphinx==8.2.3
 sphinx_inline_tabs==2023.4.21
 sphinx-copybutton==0.5.2
-Pygments==2.19.1
+Pygments==2.19.2
 sphinx-design==0.6.1

smithy-docgen-core/src/main/resources/software/amazon/smithy/docgen/core/integrations/sphinx/requirements-markdown.txt

@@ -1,3 +1,3 @@
 # These are requirements needed for sphinx projects with markdown support.
-myst-parser==4.0.0
+myst-parser==4.0.1
 linkify-it-py==2.0.3