Bump junit-jupiter-engine (#312)

Bumps [junit-jupiter-engine](https://github.com/junit-team/junit5) from 5.6.2 to 5.7.0.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](https://github.com/junit-team/junit5/compare/r5.6.2...r5.7.0)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

plugins/gradle/graphql-java-codegen-gradle-plugin/build.gradle

@@ -26,7 +26,7 @@ dependencies {
     implementation "io.github.kobylynskyi:graphql-java-codegen:${version}"
 
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.6.2'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.6.2'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.0'
 }
 
 gradlePlugin {