Bump the documentation-dependencies group with 2 updates

Updates the requirements on [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) and [sphinx-jsonschema](https://github.com/lnoor/sphinx-jsonschema) to permit the latest version.

Updates `sphinx-rtd-theme` to 1.3.0
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@1.2.2...1.3.0)

Updates `sphinx-jsonschema` to 1.19.1
- [Commits](lnoor/sphinx-jsonschema@v1.15...v.1.19.1)

---
updated-dependencies:
- dependency-name: sphinx-rtd-theme
  dependency-type: direct:development
  dependency-group: documentation-dependencies
- dependency-name: sphinx-jsonschema
  dependency-type: direct:development
  dependency-group: documentation-dependencies
...

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

pyproject.toml

@@ -46,5 +46,5 @@ sphinx = "6.2.1"
 sphinx-argparse = "0.4.0"
 sphinx-copybutton = "0.5.2"
 sphinx-pydantic = "0.1.1"
-sphinx-rtd-theme = "1.2.2"
-sphinx-jsonschema = "1.15"
+sphinx-rtd-theme = "1.3.0"
+sphinx-jsonschema = "1.19.1"