Change makefile to install and verify tools versions in a less fragile way

[dtfranz]

See Joe's comment here for explanation and potential ways we can do this: #81 (comment)

Rukpak uses a separate tools module in the repo to pull down the go tools binaries for use with the makefile targets. We could do something similar since it's a better implementation than what comes from the generated project here.

Example Makefile: https://github.com/operator-framework/rukpak/blob/main/Makefile
Example tools folder: https://github.com/operator-framework/rukpak/tree/main/hack/tools

[ankitathomas]

Solved with #252