tests: Update weekly test docker image tags to v22-1

Change-Id: I6a7ff942234f65b763d2974deb740942bfc2cc17
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65922
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed