chore: add standard devenv.nix #5

...om/stretchr/testify@v1.8.2/assert/http_assertions_test.go

...tate/go/pkg/mod/github.com/stretchr/testify@v1.8.2/doc.go

...tate/go/pkg/mod/github.com/stretchr/testify@v1.8.2/go.mod

...tate/go/pkg/mod/github.com/stretchr/testify@v1.8.2/go.sum

...go/pkg/mod/github.com/stretchr/testify@v1.8.2/http/doc.go

....com/stretchr/testify@v1.8.2/http/test_response_writer.go

...ub.com/stretchr/testify@v1.8.2/http/test_round_tripper.go

...go/pkg/mod/github.com/stretchr/testify@v1.8.2/mock/doc.go

...o/pkg/mod/github.com/stretchr/testify@v1.8.2/mock/mock.go

.../mod/github.com/stretchr/testify@v1.8.2/mock/mock_test.go

...kg/mod/github.com/stretchr/testify@v1.8.2/package_test.go

...pkg/mod/github.com/stretchr/testify@v1.8.2/require/doc.go

...m/stretchr/testify@v1.8.2/require/forward_requirements.go

...etchr/testify@v1.8.2/require/forward_requirements_test.go

...mod/github.com/stretchr/testify@v1.8.2/require/require.go

...ithub.com/stretchr/testify@v1.8.2/require/require.go.tmpl

...ub.com/stretchr/testify@v1.8.2/require/require_forward.go

...m/stretchr/testify@v1.8.2/require/require_forward.go.tmpl

...ithub.com/stretchr/testify@v1.8.2/require/requirements.go

....com/stretchr/testify@v1.8.2/require/requirements_test.go