Bump version to 1.7.0

[jeremyevans]

@searls I think things are ready for a new release. I'm not sure what the historical release process is. If you want to handle the release, that works for me. If you want to add me as an owner in rubygems and for me to handle it, I can take care of it. If there any specific release process instructions I should handle, please let me know.

[jeremyevans]

@searls I'd like to get m 1.7.0 released in the next week, so it is available by the Ruby 4.0.0 release. In addition to Ruby 4.0 support and dropping of the method_source dependency, support has been added for minitest 6 (released yesterday).

[searls]

@searls I'd like to get m 1.7.0 released in the next week, so it is available by the Ruby 4.0.0 release. In addition to Ruby 4.0 support and dropping of the method_source dependency, support has been added for minitest 6 (released yesterday).

Great! I added you as an owner of the gem (something I am actually authorized to do)

[jeremyevans]

Thank you! I'll merge this now and handle the release this evening.

[jeremyevans]

m 1.7.0 released! Note that after I worked on all of these changes, I found out that minitest 6 ships with a minitest program that allows native testing by line number, so if you are using minitest 6, you don't need to use m (though m has the benefit of being shorter).