Add support for math/rand/v2 added in Go 1.22

[hyorimitsu]

Summary

Fix for issue #1109

Changes

• Add support for math/rand/v2 to the existing rule (G404).
• Modified the function used to extract import names to handle paths with version information.

[ccojocar]

@hyorimitsu Thank you for this contribution. It looks good to me. Please could you have a look a the lint warnings?

[hyorimitsu]

@ccojocar Thank you very much for your review! I have addressed the lint warnings as suggested. With these fixes, I believe the CI should now pass successfully.
(Note that the error in the test for the G601 rule continues to occur, but it is unrelated to the current changes, so I am ignoring it.)

[ccojocar]

@hyorimitsu Thanks for fixing the lint warnings. Please could you rebase? I update the go version and fixed the failing test.

[hyorimitsu]

@ccojocar Thanks for the update. I've completed the rebase.