Fix JavaDoc

Signed-off-by: Dmitry Aleksandrov <dmitry.aleksandrov@oracle.com>

microprofile/tests/testng/src/main/java/io/helidon/microprofile/tests/testng/Configuration.java

@@ -33,7 +33,7 @@
      * If set to {@code true}, the existing (or default) MicroProfile configuration would be used.
      * By default uses a configuration constructed using all {@link AddConfig}
      * annotations and {@link #configSources()}.
-     * When set to false and a {@link org.junit.jupiter.api.BeforeAll} method registers a custom configuration
+     * When set to false and a {@link org.testng.annotations.BeforeClass} method registers a custom configuration
      * with {@link org.eclipse.microprofile.config.spi.ConfigProviderResolver}, the result is undefined, though
      * tests have shown that the registered config may be used (as BeforeAll ordering is undefined by
      * JUnit, it may be called after our extension)