Dont expose JSON5 internals (#180)

The rename of the package forgot to rename this file, thus it exposed
more than it should.

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: Leonidas-from-XIV

CHANGES.md

@@ -8,6 +8,8 @@
 
 ### Fixed
 
+- Don't expose `Yojson_five` internals anymore (@Leonidas_from_XIV, #180)
+
 ### Removed
 
 ### Security