build(deps): bump io.projectreactor:reactor-core from 3.6.2 to 3.6.9

Bumps [io.projectreactor:reactor-core](https://github.com/reactor/reactor-core) from 3.6.2 to 3.6.9.
- [Release notes](https://github.com/reactor/reactor-core/releases)
- [Commits](reactor/reactor-core@v3.6.2...v3.6.9)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ okio = "3.3.0"
 ktor = "2.3.12"
 openjdk-jmh = "1.37"
 log4j = "2.23.1"
-reactor = "3.6.2"
+reactor = "3.6.9"
 # simbot
 simbot = "4.6.0"
 suspendTransform = "0.9.0"