fix: disable offline cypress tests because they are flaky (#2050)

The offline cypress tests repeatedly cause failing PR checks. Although they often self correct if the test suite is re-run, it is still too much hassle for the benefit. The tests should still be run locally during development to confirm that offline functionality works.

.github/workflows/verify.yml

@@ -111,7 +111,7 @@ jobs:
 
         strategy:
             matrix:
-                containers: [1, 2, 3]
+                containers: [1, 2]
 
         steps:
             - name: Checkout