Configure test workflow to run all matrix jobs before failing

The default behavior is to cancel all the other matrix jobs if one fails. However, it can often be valuable to see what
the results are of the other jobs. In this case where the matrix is operating systems, it can be useful to see whether
the problem is specific to one OS, or if it affects all.

Author: per1234

.github/workflows/test-typescript-task.yml

@@ -35,6 +35,8 @@ jobs:
     runs-on: ${{ matrix.operating-system }}
 
     strategy:
+      fail-fast: false
+
       matrix:
         operating-system:
           - macos-latest