CI: Add Ruby 3.2

[ashie]

Signed-off-by: Takuro Ashie ashie@clear-code.com

[daipom]

I also ran into the same problem. This is caused by the old rake version. We need this fix for rake.

• https://github.com/ruby/rake/pull/297

This means we need to update rake and rspec.

[ashie]

I tried it once but not yet completed, some tests stall on latest RSpec.

[ashie]

Oh? Now I've tested them locally and succeeded without any problems. Fixed by upstream?

[ashie]

CI succeeded on all environments.

[daipom]

Yay! Thanks!