Update reactor to v3.7.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
io.projectreactor:reactor-test	3.7.0 -> 3.7.1
io.projectreactor:reactor-core	3.7.0 -> 3.7.1

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Release Notes

reactor/reactor-core (io.projectreactor:reactor-test)

v3.7.1

Reactor Core 3.7.1 is part of 2024.0.1 Release Train.

What's Changed

✨ New features and improvements

• Optimize observability and debugging experience by @​Stephan202 in #​3901
• Skip redundant tag deduplication by @​Stephan202 in #​3902
• Refactor and add tests for optimized assembly traceback by @​chemicL in #​3949

🐞 Bug fixes

• Fix SwitchOnFirst hanging subscription by @​chemicL in #​3939

📖 Documentation

• Add warning about static exceptions by @​chemicL in #​3944

New Contributors

• @​Stephan202 made their first contribution in #​3902

Full Changelog: reactor/reactor-core@v3.7.0...v3.7.1

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