Update sphinx-rtd-theme requirement from <3,>=2 to >=2,<4 in /bindings/python (#270)

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

Author: dependabot[bot]

bindings/python/docs/docs-requirements.txt

@@ -1,4 +1,4 @@
 sphinx>=5.3,<9
-sphinx_rtd_theme>=2,<3
+sphinx_rtd_theme>=2,<4
 sphinxcontrib-shellcheck>=1,<2
 furo==2024.8.6