Suppress interactive-only warnings in undo-tests.el (Bug#36565)

* test/src/undo-tests.el (undo-test-region-deletion)
(undo-test-region-example, undo-test-marker-adjustment-nominal)
(undo-test-region-t-marker, undo-test-marker-adjustment-moved)
(undo-test-region-mark-adjustment): Suppress interactive-only warnings
by using funcall-interactively.
1 job for master in 52 minutes and 26 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #2928
test-all

00:52:26

 
Name Stage Failure
failed
test-all Test
Makefile:318: recipe for target 'check-doit' failed
make[2]: *** [check-doit] Error 1
make[2]: Leaving directory '/builds/emacs/emacs/test'
Makefile:293: recipe for target 'check-expensive' failed
make[1]: *** [check-expensive] Error 2
make[1]: Leaving directory '/builds/emacs/emacs/test'
Makefile:959: recipe for target 'check-expensive' failed
make: *** [check-expensive] Error 2
ERROR: Job failed: exit code 1