Replace ahash with rapidhash (#7954)

* Add `rapidhash` to list of dependencies

* Use `rapidhash::quality::RandomState` in `codegen` crate

* Use `rapidhash::quality::RandomState` in `stdlib` crate

* Use `rapidhash::quality::RandomState` in `vm` crate

* Remove `ahash` from lists of dependencies

.github/dependabot.yml

@@ -85,7 +85,6 @@ updates:
           - "quote-use*"
       random:
         patterns:
-          - "ahash"
           - "getrandom"
           - "mt19937"
           - "rand*"