Update dependencies and improve search method

[PaulRotmann]

Update dependencies to support PHP 5.3 and react/promise v3.2+

• Upgrade react/promise dependency to include v3.2+, adapting to new resolve() API that requires an argument.
• Update clue/multicast-react:
  • The latest code includes essential fixes for compatibility with updated react/promise APIs and PHP 8+,
  • This ensures multicast functionality works correctly with new dependencies and PHP versions.
• Modify search() method to accumulate all incoming messages in array() before resolving the promise, ensuring proper integration with the updated promise API and maintaining PHP 5.3 compatibility.
• Use explicit array() syntax instead of [] throughout the code for PHP 5.3 support.

[clue]

@PaulRotmann Thanks for looking into this, but I don't quite understand how this is related to #18 and #19 and why this builds on to top of these changes. I think this could be simplified by avoiding this dependency to ease review. Can you look into this to help isolate/emphasize what is being "improved" here exactly?

[PaulRotmann]

@clue you're right, this PR can stand alone. Changed the original text to and commit to explain better

[PaulRotmann]

After conversation with @clue i noticed this PR will be too hard for me to handle, because of promise v3.
I'll close this PR for now, but this topic should be addressed in future.