community/capnproto: remove obsolete libucontext patch

Since https://github.com/capnproto/capnproto/pull/1409, libucontext is auto-detected during the build, and therefore it does not require a patch anymore.

Also build the dev package with openssl-dev and zlib-dev.

assigned to @lucaweiss

Bump the pkgrel and then LGTM

added 7 commits

• 37d45e9e...6777e8d8 - 6 commits from branch alpine:master
• e5c477bf - community/capnproto: remove obsolete libucontext patch

Compare with previous version

merged