epiphany: 3.22.4 -> 3.22.5 (fixes source hash)

I don't know what happened in 754a9cf6
("gnome3.20: remove"), but that hash doesn't work. (Did gnome update
tarball in place?)

I ran "./maintainers/scripts/gnome.sh update epiphany" and selected the
current major.minor version. Now the hash is working.