Merge pull request ocaml#12093 from Alizter/re-enable-tests

test: re-enable exec-watch tests

Author: Alizter

test/blackbox-tests/test-cases/exec-watch/dune

@@ -15,10 +15,5 @@
  (applies_to exec-watch-server exec-watch-ignore-sigterm exec-signal)
  (enabled_if false))
 
-; CR Alizter: renable all tests again, work out what causes the CI to hang
-
-(cram
- (enabled_if false))
-
 (cram
  (deps wait-for-file.sh))