Thierry Martinez authored Sep 07, 2022 and Thierry Martinez committed Sep 07, 2022

This commit makes coccinelle compilable with OCaml 5.0.
(Coccinelle should still compile with all previous versions of
OCaml from 3.12.)

This commit updates pyml to the last released version (2022-09-06),
for compatiblity with OCaml 5.0, and fixes the other bundles to remove
the warnings.