Auto merge of #3209 - Turbo87:optional-embroider, r=pichfl

CI: Allow embroider build to fail

While it is good for us to check whether we are compatible with https://github.com/embroider-build/embroider/ or not, we shouldn't make CI fail if something breaks our embroider compatibility. This problem is currently blocking a few dependency updates that will ultimately improve embroider compatibility, but breaks it in the transition period.

This PR configures our GitHub Actions CI to allow the embroider job to fail, to unblock these dependency updates.

r? `@pichfl`

Author: bors

.github/workflows/ci.yml

@@ -60,6 +60,7 @@ jobs:
 
       - run: yarn install
       - run: yarn test
+        continue-on-error: true
 
   backend:
     name: Backend