Update Go action reports the incorrect title

[dmikusa]

Expected Behavior

For some buildpacks, when it updates just to Go Modules, the Update Go action reports it also updated the Go version. It should just report that it has updated the Go modules.

See paketo-buildpacks/clojure-tools#241 as an example. It did not actually update Go, so it should have just set the title to updating go mods.

We may need to adjust with #1636 too, so it might make sense to fix these two together.

[dmikusa]

Resolved by #1702