Bump io.projectreactor:reactor-bom from 2024.0.0-M6 to 2024.0.0-RC1

Bumps [io.projectreactor:reactor-bom](https://github.com/reactor/reactor) from 2024.0.0-M6 to 2024.0.0-RC1.
- [Release notes](https://github.com/reactor/reactor/releases)
- [Commits](https://github.com/reactor/reactor/compare/2024.0.0-M6...2024.0.0-RC1)

---
updated-dependencies:
- dependency-name: io.projectreactor:reactor-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ micrometer-tracing = "1.4.0-M3"
 protobuf = "3.25.5"
 pulsar = "3.3.2"
 pulsar-reactive = "0.5.7"
-reactor = "2024.0.0-M6"
+reactor = "2024.0.0-RC1"
 spring = "6.2.0-RC1"
 # tests
 assertj = "3.26.3"