Bug#1033224: gnome-builder: Depends on obsolete gir1.2-webkit2-5.0 package

[Alberto Garcia]

Package: gnome-builder
Version: 43.6-2
Severity: serious
Justification: Policy 7.2

gnome-builder 43.6-2 switched the build dependency from WebtKitGTK 5.0
to 6.0 since the former API is no longer available and is going away.

However it still contains a dependency on gir1.2-webkit2-5.0, so it
effectively depends on both 5.0 and 6.0 API builds of WebKitGTK.

Related bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1029206

Berto