Incorrect "This pull request removes 1217 tests." from GitHub actions

[jonahgraham]

This pull request removes 1217 tests.

Hmm. A side of effect of making this comment work is that it compares to the last build of HEAD. However since we run different numbers of tests depending on whether debug tests have been suppressed we get this unexpected warning about removing tests. The tests were not removed, they were just not run this time.

Originally posted by @jonahgraham in #1060 (comment)