[PRQ#73365] Merge Request for webkit2gtk-unstable

MarsSeed [1] filed a request to merge webkit2gtk-unstable [2] into webkitgtk-6.0-devel [3]: Only the latter PKGBUILD is owned and maintained, and its base name aligns with the pkgname of the stable Arch/extra/webkitgtk-6.0 package. The former AUR build is abandoned since a year ago, and is obsolete. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/webkit2gtk-unstable/ [3] https://aur.archlinux.org/pkgbase/webkitgtk-6.0-devel/