Bump sphinx from 6.2.1 to 7.0.0 (#717)

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

Author: dependabot[bot]

requirements-dev.txt

@@ -7,4 +7,4 @@ flake8-import-order==0.18.2
 flake8-requirements==1.7.7
 mypy==1.2.0; implementation_name=="cpython"
 pre-commit==3.2.2
-sphinx==6.2.1
+sphinx==7.0.0