feat: Add support for SASL/SCRAM-SHA-512 (#12)

Author: BitProcessor

src/main/java/com/devshawn/kafka/gitops/config/KafkaGitopsConfigLoader.java

@@ -61,7 +61,7 @@ private static void handleAuthentication(AtomicReference<String> username, Atomi
             String loginModule = null;
             if (config.get(SaslConfigs.SASL_MECHANISM).equals("PLAIN")) {
                 loginModule = "org.apache.kafka.common.security.plain.PlainLoginModule";
-            } else if (config.get(SaslConfigs.SASL_MECHANISM).equals("SCRAM-SHA-256")) {
+            } else if (config.get(SaslConfigs.SASL_MECHANISM).equals("SCRAM-SHA-256") || config.get(SaslConfigs.SASL_MECHANISM).equals("SCRAM-SHA-512")) {
                 loginModule = "org.apache.kafka.common.security.scram.ScramLoginModule";
             } else {
                 throw new MissingConfigurationException("KAFKA_SASL_MECHANISM");