[JHBuild] Disable gnutls backend in glib-networking and enable openssl backend

[dpino]

f73c49a

[JHBuild] Disable gnutls backend in glib-networking and enable openssl backend
https://bugs.webkit.org/show_bug.cgi?id=239324

Reviewed by Carlos Alberto Lopez Perez.

glib-networking uses gnutls backend by default. Ubuntu 18.04's gnutls
doesn't meet the minimal version required by glib-networking. Use
openssl instead.

* jhbuild/jhbuild-minimal.modules: Use openssl backend in glib-networking.

Canonical link: https://commits.webkit.org/251256@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@295199 268f45cc-cd09-0410-ab3c-d52691b4dbfc

[webkit-early-warning-system]

Committed r295199 (251256@main): https://commits.webkit.org/251256@main

Reviewed commits have been landed. Closing PR #1268 and removing active labels.