Update the project's Junit and GraalVM Native Build Tools versions (#218)

Author: linghengqian

gradle/libs.versions.toml

@@ -1,11 +1,11 @@
 [versions]
 # Project versions
-nativeBuildTools = "0.9.16"
+nativeBuildTools = "0.9.20"
 
 # External dependencies
-junitPlatform = "1.8.1"
-junitJupiter = "5.8.1"
-groovy = "3.0.8"
+junitPlatform = "1.9.2"
+junitJupiter = "5.9.2"
+groovy = "3.0.14"
 
 [libraries]
 nativeGradlePlugin = { module = "org.graalvm.buildtools:native-gradle-plugin", version.ref = "nativeBuildTools" }