Disable fail-fast on mvn matrix to surface all OS/Java failures

Author: bibonix

.github/workflows/mvn.yml

@@ -15,6 +15,7 @@ jobs:
     timeout-minutes: 15
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         os: [ubuntu-24.04, windows-2022, macos-15]
         java: [17, 21]