Disable duplicate project detection in Gradle 6.2 (#52529)

gradle.properties

@@ -2,3 +2,7 @@ org.gradle.warning.mode=none
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError -Xss2m
 options.forkOptions.memoryMaximumSize=2g
+
+# Disable duplicate project id detection
+# See https://docs.gradle.org/current/userguide/upgrading_version_6.html#duplicate_project_names_may_cause_publication_to_fail
+systemProp.org.gradle.dependency.duplicate.project.detection=false