build(deps): bump io.projectreactor:reactor-core from 3.7.0 to 3.7.3

Bumps [io.projectreactor:reactor-core](https://github.com/reactor/reactor-core) from 3.7.0 to 3.7.3.
- [Release notes](https://github.com/reactor/reactor-core/releases)
- [Commits](reactor/reactor-core@v3.7.0...v3.7.3)

---
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 @@ dokka = "1.9.20"
 ktor = "2.3.12"
 openjdk-jmh = "1.37"
 log4j = "2.24.2"
-reactor = "3.7.0"
+reactor = "3.7.3"
 # simbot
 simbot = "4.7.0"
 suspendTransform = "2.0.20-0.9.4"