JSONTokener getter/setter for JSONParserConfiguration needs work

[stleary]

The 20250107 release of the strictMode feature includes JSONTokener getter and setter methods for the JSONParserConfiguration instance. These methods are no longer needed since the config instance has been added to the JSONTokener constructor. In particular, the setter could allow a developer to introduce unexpected behavior. Other solutions may be possible, but the following is recommended:

Getter: Annotate @deprecated. Otherwise, it's probably harmless, no change.
Setter: Annotate @deprecated. Consider silently ignoring the param if it is null.

[marilynel]

Working on issue: setter to be @deprecated, getter to be left alone

[stleary]

Closing due to fixed in #949