Downgrade sphinx to match our supported python versions

Author: arnaudlimbourg

poetry.lock

@@ -27,7 +27,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8,<3.12"
+python = ">=3.7,<3.12"
 requests = "^2.30.0"
 tuspy = "^1.0.0"
 
@@ -38,7 +38,7 @@ coverage = "^7.2.5"
 pytest-cov = "^4.0.0"
 requests-mock = "^1.10.0"
 tox = "^4.5.1"
-sphinx = "^7.0.0"
+sphinx = "^4.5.0"
 sphinx-autobuild = "^2021.3.14"
 
 [build-system]