using ./format-json script

From now on, hosts keys will always be checked and there is no way
to disable the check

remove also software/unstable/zimbra-kvm which were still referencing
those recipes

using https://github.com/matomo-org/matomo/pull/13676

This repairs a NameError introduced in 397726e1 (erp5/neoppod/slapos:
Support for python3 from aurel/zope4 branch., 2022-02-03) that was
causing ERP5-IOS test suite to fail in loop.

a binary make use of it and do not any more download a binary. Instead
compile on the fly.

Nettle has hard dependency on openssl, and --disable-openssl is only
disabling optional feature of it.

This reverts commit 054386d6.

It proven to be insufficient to fix issues with PYTHON make variable
surcharging from top make.

also update apr and apt-util.

This was added in 48bcc52a (software/theia: some "better" defaults,
2019-08-30) because the default keybinding to create another cursor is
alt-click, but on ChromeOS alt-click does a right click, but:
 - not everybody use ChromeOS
 - this breaks the ctrl+click shortcut to go to definition/follow link
 - it makes SlapOS' Theia behaves differently from default Theia or vscode
 - ChromeOS users can use chrome://flags/#use-search-click-for-right-click
  (I'm using this flag and this seems perfect)