small change to package copy test. -Sometimes, this test is failing on github actions due to ctimes being identical when they shouldn't -No idea why this is, but changed to check a file ctime rather than higher-level dir -Maybe there are edge cases I'm not aware of.
small change to package copy test.
-Sometimes, this test is failing on github actions due to ctimes being identical when they shouldn't
-No idea why this is, but changed to check a file ctime rather than higher-level dir
-Maybe there are edge cases I'm not aware of.

nerdvegas/rez,nerdvegas/rez,instinct-vfx/rez,instinct-vfx/rez