jigdo: dependency fixes

It complains, loudly, about using db5 and suggests downgrading to db4,
so that’s done here. It also needs wget to be present on the system for
the ` jigdo-lite ` element to function.

Aside those two things, just style changes.

Closes #35022.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
jigdo: add 0.7.3_1 bottle.
libimobiledevice: fix head url

The old head url isn't working anymore.

Closes #35054.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>