DOC: add SA01 for pandas.api.types.is_scalar (#58770)

Author: tuhinsharma121

ci/code_checks.sh

@@ -346,7 +346,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.api.types.is_period_dtype SA01" \
         -i "pandas.api.types.is_re PR07,SA01" \
         -i "pandas.api.types.is_re_compilable PR07,SA01" \
-        -i "pandas.api.types.is_scalar SA01" \
         -i "pandas.api.types.is_signed_integer_dtype SA01" \
         -i "pandas.api.types.is_sparse SA01" \
         -i "pandas.api.types.is_string_dtype SA01" \

pandas/_libs/lib.pyx

@@ -184,6 +184,13 @@ def is_scalar(val: object) -> bool:
     bool
         Return True if given object is scalar.
 
+    See Also
+    --------
+    api.types.is_list_like : Check if the input is list-like.
+    api.types.is_integer : Check if the input is an integer.
+    api.types.is_float : Check if the input is a float.
+    api.types.is_bool : Check if the input is a boolean.
+
     Examples
     --------
     >>> import datetime