Don't fail fast in CI

We still want to complete tests on Stable/Nightly if the other one fails

Author: victorb

.github/workflows/ci.yml

@@ -10,6 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
         rust-toolchain: [ "stable", "nightly-2024-12-21" ]
     steps: