Backport PR pandas-dev#42417: DOC: GH42409 Fix mistake in code example of Styler.to_latex documentation

Author: STAMcM

pandas/io/formats/style.py

@@ -703,7 +703,7 @@ def to_latex(
         >>> df = pd.DataFrame([[1]])
         >>> df.style.set_properties(
         ...     **{"font-weight": "bold /* --dwrap */", "Huge": "--latex--rwrap"}
-        ... ).to_latex(css_convert=True)
+        ... ).to_latex(convert_css=True)
         \begin{tabular}{lr}
         {} & {0} \\
         0 & {\bfseries}{\Huge{1}} \\