Use your own domain for your code forge hosted Go modules

Just a heads-up: I changed one of my repos URL [0], released as v0 at the moment, and bumped to v1 alongside the URL change.

Go treats v0 and v1 as equivalent, so it tries to bump from v0.x to v1.0.0 keeping the old URL. This causes errors because the `go.mod` URL isn't the same.

If you want to change the URL and you haven't reached v1, you should do it as a v2 instead, skipping v1.

0: https://dario.cat/mergo