mirage-crypto-pk 0.6* 0.7* 0.8.0: restrict to eqaf < 0.10
```
=== ERROR while compiling mirage-crypto-pk.0.8.0 =============================#
context 2.2.0~beta3~dev | linux/x86_64 | ocaml-base-compiler.4.14.2 | file:///home/opam/opam-repository
path ~/.opam/4.14/.opam-switch/build/mirage-crypto-pk.0.8.0
command ~/.opam/opam-init/hooks/sandbox.sh build dune build -p mirage-crypto-pk -j 255
exit-code 1
env-file ~/.opam/log/mirage-crypto-pk-7-5cecb4.env
output-file ~/.opam/log/mirage-crypto-pk-7-5cecb4.out
## output ###
File "pk/dune", line 4, characters 68-80:
4 | (libraries cstruct zarith mirage-crypto mirage-crypto-rng sexplib eqaf.cstruct rresult)
^^^^^^^^^^^^
Error: Library "eqaf.cstruct" not found.
-> required by library "mirage-crypto-pk" in _build/default/pk
-> required by _build/default/META.mirage-crypto-pk
-> required by _build/install/default/lib/mirage-crypto-pk/META
-> required by _build/default/mirage-crypto-pk.install
-> required by alias install
```