Don't fail matrix fast.

Author: kinyoklion

.github/workflows/test-helpers.yml

@@ -14,6 +14,7 @@ jobs:
   build-test-helpers:
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         java-version: [8, 11, 17, 19]
         os: [ubuntu-latest]