chore: Rename ControllerMessenger to Messenger

[cryptodev-2s]

Explanation

Rename RestrictedControllerMessenger to RestrictedMessenger and ControllerMessenger to Messenger.

References

Relates to #4538

Changelog

No functional changes.

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.88%. Comparing base (dfcdee2) to head (0c2ac40).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3053   +/-   ##
=======================================
  Coverage   94.87%   94.88%           
=======================================
  Files         506      506           
  Lines       11123    11121    -2     
  Branches     1703     1703           
=======================================
- Hits        10553    10552    -1     
+ Misses        570      569    -1     

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