[3.12] gh-87506: Document that json.load*() can raise UnicodeDecodeError (GH-127355)

(cherry picked from commit 15372d0)

Co-authored-by: Srinivas Reddy Thatiparthy (తాటిపర్తి శ్రీనివాస్  రెడ్డి) <[email protected]>
Co-authored-by: Erlend Aasland <[email protected]>

Author: srinivasreddy

Doc/library/json.rst

@@ -313,6 +313,10 @@ Basic Usage
    :raises JSONDecodeError:
       When the data being deserialized is not a valid JSON document.
 
+   :raises UnicodeDecodeError:
+      When the data being deserialized does not contain
+      UTF-8, UTF-16 or UTF-32 encoded data.
+
    .. versionchanged:: 3.1
 
       * Added the optional *object_pairs_hook* parameter.
@@ -332,15 +336,11 @@ Basic Usage
 
 .. function:: loads(s, *, cls=None, object_hook=None, parse_float=None, parse_int=None, parse_constant=None, object_pairs_hook=None, **kw)
 
-   Deserialize *s* (a :class:`str`, :class:`bytes` or :class:`bytearray`
+   Identical to :func:`load`, but instead of a file-like object,
+   deserialize *s* (a :class:`str`, :class:`bytes` or :class:`bytearray`
    instance containing a JSON document) to a Python object using this
    :ref:`conversion table <json-to-py-table>`.
 
-   The other arguments have the same meaning as in :func:`load`.
-
-   If the data being deserialized is not a valid JSON document, a
-   :exc:`JSONDecodeError` will be raised.
-
    .. versionchanged:: 3.6
       *s* can now be of type :class:`bytes` or :class:`bytearray`. The
       input encoding should be UTF-8, UTF-16 or UTF-32.