Go has excellent build tools that mitigate the need for using make.
For example, go install won't update the target unless it's older
than the source files.
However, a Makefile can be convenient for wrapping Go commands with
specific build targets that simplify usage on the command line.
Since most of the targets are "phony", it's up to you to weigh the
pros and cons of having a dependency on make versus using a shell
script. For the simplicity of being able to specify targets that
can be chained and can take advantage of make's chained targets,