Don't cancel all jobs if one fails

Author: samuelhwilliams

.github/workflows/test.yml

@@ -10,6 +10,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     strategy:
+      fail-fast: false
       matrix:
         os: [ubuntu-20.04, windows-latest, macos-latest]
         python-version: [3.6, 3.7, 3.8, 3.9, "3.10"]