Matrix testing with version from go.mod file

[Jacalz]

Similar to actions/setup-go#450, it would be nice to be able to specify go.mod (or any other path to a Go module) as an input to the go-version parameter. The benefit of this over go-version-file is that you can have a workflow with matrix testing using the version from go.mod as the lowest version and any newer versions. Basically, this makes it possible to write GitHub actions that are more or less maintenance free (the below example testing the lowest supported Go version and the latest stable):

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        go: [ 'go.mod', 'stable' ]
    name: Go ${{ matrix.go }} sample
    steps:
      - uses: actions/checkout@v4
      - name: Setup Go
        uses: WillAbides/setup-go-faster@v1
        with:
          go-version: ${{ matrix.go }}
      - run: go run hello.go