increase version number for a pypi release

PiperOrigin-RevId: 680493644

Author: fabianp

chex/__init__.py

@@ -104,7 +104,7 @@
 from chex._src.warnings import warn_only_n_pos_args_in_future
 
 
-__version__ = "0.1.86"
+__version__ = "0.1.87"
 
 __all__ = (
     "all_variants",