Bump org.junit.platform:junit-platform-launcher in /modules/r2dbc

Bumps [org.junit.platform:junit-platform-launcher](https://github.com/junit-team/junit-framework) from 1.11.0 to 6.0.0.
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](https://github.com/junit-team/junit-framework/commits/r6.0.0)

---
updated-dependencies:
- dependency-name: org.junit.platform:junit-platform-launcher
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

modules/r2dbc/build.gradle

@@ -8,7 +8,7 @@ dependencies {
     api project(':testcontainers')
     api 'io.r2dbc:r2dbc-spi:0.9.0.RELEASE'
 
-    testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.11.0'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher:6.0.0'
 
     testImplementation 'org.junit.jupiter:junit-jupiter:5.13.4'
     testImplementation 'org.assertj:assertj-core:3.27.4'