Update junit-bom to 5.9.0-RC1

Closes gh-11557

buildSrc/build.gradle

@@ -99,7 +99,7 @@ dependencies {
 	implementation 'org.jfrog.buildinfo:build-info-extractor-gradle:4.24.20'
 	implementation 'org.sonarsource.scanner.gradle:sonarqube-gradle-plugin:2.7.1'
 
-	testImplementation platform('org.junit:junit-bom:5.8.2')
+	testImplementation platform('org.junit:junit-bom:5.9.0-RC1')
 	testImplementation "org.junit.jupiter:junit-jupiter-api"
 	testImplementation "org.junit.jupiter:junit-jupiter-params"
 	testImplementation "org.junit.jupiter:junit-jupiter-engine"

dependencies/spring-security-dependencies.gradle

@@ -10,7 +10,7 @@ dependencies {
 	api platform("org.springframework:spring-framework-bom:$springFrameworkVersion")
 	api platform("io.projectreactor:reactor-bom:2020.0.21")
 	api platform("io.rsocket:rsocket-bom:1.1.2")
-	api platform("org.junit:junit-bom:5.8.2")
+	api platform("org.junit:junit-bom:5.9.0-RC1")
 	api platform("org.springframework.data:spring-data-bom:2021.2.0-M4")
 	api platform("org.jetbrains.kotlin:kotlin-bom:$kotlinVersion")
 	api platform("org.jetbrains.kotlinx:kotlinx-coroutines-bom:1.6.4")