Originally there was no way to build both webkit-gtk and webkit-wpe
in the same checkout. As a result, we were:
- building webkit-gtk & uploading it to CDN
- building webkit-wpe & uploading it to CDN
- downloading webkit-gtk & webkit-wpe from CDN and compiling a single
webkit-gtk-wpe folder that we uploaded to CDN
As of today, however, we can build WPE and GTK ports together. This
patch starts using this to drastically simplify build process:
- build webkit-gtk and webkit-wpe
- use `archive.sh` script that compiles a single folder with both ports
- upload archive to the cloud
This should also fix currently failing webkit build that fails to
assemble the `webkit-gtk-wpe` folder (I missed these codepaths while preparing
for Ubuntu-20.04 bot).
References #2745
