ci: disable hypothesis too-slow healthcheck

This seems to make tests flaky in some cases, in particular the macos
nix builds. We only test macos on nix, so that's likely why we don't see
it in the non-nix builds.

ibis/tests/conftest.py

@@ -3,9 +3,18 @@
 import hypothesis as h
 
 # setup hypothesis profiles
-h.settings.register_profile('ci', max_examples=1000)
-h.settings.register_profile('dev', max_examples=50)
-h.settings.register_profile('debug', max_examples=10, verbosity=h.Verbosity.verbose)
+h.settings.register_profile(
+    'ci', max_examples=1000, suppress_health_check=[h.HealthCheck.too_slow]
+)
+h.settings.register_profile(
+    'dev', max_examples=50, suppress_health_check=[h.HealthCheck.too_slow]
+)
+h.settings.register_profile(
+    'debug',
+    max_examples=10,
+    verbosity=h.Verbosity.verbose,
+    suppress_health_check=[h.HealthCheck.too_slow],
+)
 
 # load default hypothesis profile, either set HYPOTHESIS_PROFILE environment
 # variable or pass --hypothesis-profile option to pytest, to see the generated