Update sphinx requirement from !=5.1.0,<7.4.7,>=4 to >=4,!=5.1.0,<7.4.8

pyproject.toml

@@ -39,7 +39,7 @@ doc = [
     "doc8>=0.9,<1.2",  # Ensures clean documentation formatting
     "furo>=2022.4.7",  # A clean customisable Sphinx documentation theme.
     "rstcheck[sphinx,toml]>=5.0,<6.3",  # ReStructuredText linter
-    "sphinx>=4,!=5.1.0,<7.4.7",
+    "sphinx>=4,!=5.1.0,<7.4.8",
     "sphinx-autoapi>=1.8,<3.2",
     "sphinx-issues>=1.2,<4.2",
     "sphinx-autodoc-typehints>1.19,<2.2.4",