How to run tests in parallel in Github Actions

The company I work for has recently switched to Github Actions for CI, as they offer 2000 minutes per month which is quite adequate for our volume. We have been running tests in parallel (2 instances) on the previous CI to save time, and we wanted to do the same on Github Actions.Github Actions provides strategy matrix which lets you run tests in parallel, with different configuration for each matrix.For example with a matrix strategy below :.