point is an obsolete generalized variable; use goto-char instead

[wyuenho]

During byte or native compiling company-native-complete.el on Emacs 29, the following warnings are emitted:

⛔ Warning (comp): native-complete.el:166:29: Warning: ‘point’ is an obsolete generalized variable; use ‘goto-char’ instead.
⛔ Warning (comp): native-complete.el:170:25: Warning: ‘point’ is an obsolete generalized variable; use ‘goto-char’ instead.
⛔ Warning (comp): native-complete.el:266:40: Warning: ‘point’ is an obsolete generalized variable; use ‘goto-char’ instead.
⛔ Warning (comp): native-complete.el:271:25: Warning: ‘point’ is an obsolete generalized variable; use ‘goto-char’ instead.

Those (cl-letf (((point)... need to be rewritten.