restrict spoke to mirage-crypto < 0.11.0

[hannesm]

for revdep #23282

[mseri]

Thanks

[mseri]

Error is

#=== ERROR while compiling spoke.0.0.1 ========================================#
# context              2.2.0~alpha~dev | linux/x86_64 | ocaml-base-compiler.4.14.1 | file:///home/opam/opam-repository
# path                 ~/.opam/4.14/.opam-switch/build/spoke.0.0.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p spoke -j 47
# exit-code            1
# env-file             ~/.opam/log/spoke-7-2341f0.env
# output-file          ~/.opam/log/spoke-7-2341f0.out
### output ###
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -bin-annot -I lib/.spoke.objs/byte -I /home/opam/.opam/4.14/lib/angstrom -I /home/opam/.opam/4.14/lib/bigstringaf -I /home/opam/.opam/4.14/lib/cstruct -I /home/opam/.opam/4.14/lib/digestif -I /home/opam/.opam/4.14/lib/encore -I /home/opam/.opam/4.14/lib/eqaf -I /home/opam/.opam/4.14/lib/eqaf/bigstring -I /home/opam/.opam/4.14/lib/eqaf/cstruct -I /home/opam/.opam/4.14/lib/fmt -I /home/opam/.opam/4.14/lib/mirage-crypto -no-alias-deps -open Spoke__ -o lib/.spoke.objs/byte/spoke.cmi -c -intf lib/spoke.mli)
# File "lib/spoke.mli", line 82, characters 10-48:
# 82 |   | CCM : Mirage_crypto.Cipher_block.AES.CCM.key aead
#                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# Error: Unbound module Mirage_crypto.Cipher_block.AES.CCM
# Hint: Did you mean GCM?