Revert "Provisionally ignore panics that happen in these days often"

This reverts commit e0f4c4e410.

We expect https://github.com/ruby/ruby/pull/9729 to address the failure.

.github/workflows/yjit-macos.yml

@@ -66,7 +66,6 @@ jobs:
           - test_task: 'check'
             configure: '--enable-yjit=dev'
             yjit_opts: '--yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc'
-            continue-on-test_task: true # provisionally
       fail-fast: false
 
     env:

.github/workflows/yjit-ubuntu.yml

@@ -102,7 +102,6 @@ jobs:
           - test_task: 'check'
             configure: '--enable-yjit=dev'
             yjit_opts: '--yjit-call-threshold=1 --yjit-verify-ctx --yjit-code-gc'
-            continue-on-test_task: true # provisionally
 
           - test_task: 'test-bundled-gems'
             configure: '--enable-yjit=dev'