refactor: remove -compat check for `go mod tidy`

What

Remove the -compat flag where we run go mod tidy

Why

This was added in !171 (merged) because of an indirect dependency, where go mod tidy had to run in 1.17 compatibility mode as go.sum cannot generate the same dependency graph on go <= 1.16.

We no longer support go 1.16 or go 1.17 since those are EOL from the Go team themselves.