Upgrade to JUnit 5.7

Closes gh-25527

Author: sbrannen

build.gradle

@@ -31,7 +31,7 @@ configure(allprojects) { project ->
 			mavenBom "org.eclipse.jetty:jetty-bom:9.4.31.v20200723"
 			mavenBom "org.jetbrains.kotlin:kotlin-bom:1.4.0"
 			mavenBom "org.jetbrains.kotlinx:kotlinx-coroutines-bom:1.3.9"
-			mavenBom "org.junit:junit-bom:5.7.0-RC1"
+			mavenBom "org.junit:junit-bom:5.7.0"
 		}
 		dependencies {
 			dependencySet(group: 'org.apache.logging.log4j', version: '2.13.3') {
@@ -375,7 +375,7 @@ configure([rootProject] + javaProjects) { project ->
 			"https://fasterxml.github.io/jackson-dataformat-xml/javadoc/2.10/",
 			"https://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/",
 			"https://junit.org/junit4/javadoc/4.13/",
-			"https://junit.org/junit5/docs/5.6.2/api/"
+			"https://junit.org/junit5/docs/5.7.0/api/"
 	] as String[]
 }