Refer to the version of Mockito from core's buildSrc/version.properties (#630)

Signed-off-by: Craig Perkins <cwperx@amazon.com>
(cherry picked from commit afad2c1)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

build.gradle

@@ -162,7 +162,7 @@ dependencies {
     implementation project(path: ":${rootProject.name}-spi", configuration: 'shadow')
     implementation group: 'com.google.guava', name: 'guava', version:'32.1.3-jre'
     implementation group: 'com.google.guava', name: 'failureaccess', version:'1.0.2'
-    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.11.0'
+    testImplementation group: 'org.mockito', name: 'mockito-core', version: "${versions.mockito}"
     javaRestTestImplementation project.sourceSets.main.runtimeClasspath
     //spotless
     implementation('com.google.googlejavaformat:google-java-format:1.22.0') {