Fix GHA skippable syntax

Mathieu Velten · Mathieu Velten · commit 3b941a5b61c2 · 2022-09-12T18:17:40.000+02:00
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
@@ -486,6 +486,7 @@ jobs:
           needs: ${{ toJSON(needs) }}
 
           # The newsfile lint may be skipped on non PR builds
-          skippable:
+          # Cargo test is skipped if there is no changes on Rust code
+          skippable: |
             lint-newsfile
             cargo-test
