ocaml 5: cry uses bytes
Depend on `base-bytes` to avoid this failure:
#=== ERROR while compiling cry.0.6.7 ==========================================#
# context 2.2.0~alpha~dev | linux/x86_64 | ocaml-base-compiler.5.0.0 | file:///home/opam/opam-repository
# path ~/.opam/5.0/.opam-switch/build/cry.0.6.7
# command ~/.opam/opam-init/hooks/sandbox.sh build dune build -p cry -j 255 @install
# exit-code 1
# env-file ~/.opam/log/cry-8-6efd18.env
# output-file ~/.opam/log/cry-8-6efd18.out
### output ###
# File "src/dune", line 5, characters 2-7:
# 5 | bytes
# ^^^^^
# Error: Library "bytes" not found.