fix: ignore Sonar-reported issue

Author: metacosm

sample-operators/mysql-schema/src/main/java/io/javaoperatorsdk/operator/sample/MySQLSchemaReconciler.java

@@ -81,6 +81,7 @@ public void injectInto(EventSourceContext context) {
   @Override
   public void initContext(MySQLSchema primary, Context context) {
     final var name = primary.getMetadata().getName();
+    // NOSONAR we don't need cryptographically-strong randomness here
     final var password = RandomStringUtils.randomAlphanumeric(16);
     final var secretName = String.format(SECRET_FORMAT, name);
     final var userName = String.format(USERNAME_FORMAT, name);