OZG-4453 get from data instead of string data

ozgcloud-elasticsearch-operator/src/main/java/de/ozgcloud/operator/OzgCloudElasticsearchSecretHelper.java

@@ -48,7 +48,7 @@ public class OzgCloudElasticsearchSecretHelper {
 		return new SecretBuilder()
 				.withType(SECRET_TYPE)
 				.withMetadata(createMetaData(properties.getCertificateSecretName(), namespace))
-				.addToStringData(CERTIFICATE_SECRET_DATA_KEY, data)
+				.addToData(CERTIFICATE_SECRET_DATA_KEY, data)
 				.build();
 	}
 	

ozgcloud-elasticsearch-operator/src/main/java/de/ozgcloud/operator/OzgCloudElasticsearchService.java

@@ -143,7 +143,7 @@ public class OzgCloudElasticsearchService {
 	}
 	
 	private String getSecretData(Secret secret) {
-		return MapUtils.getString(secret.getStringData(), properties.getServer().getCertificateSecretDataKey());
+		return MapUtils.getString(secret.getData(), properties.getServer().getCertificateSecretDataKey());
 	}
 	
 	ResourceAdapter<Secret> createAdapter(Resource<Secret> resource) {

ozgcloud-elasticsearch-operator/src/test/java/de/ozgcloud/operator/OzgCloudElasticsearchSecretHelperTest.java

@@ -165,7 +165,7 @@ class OzgCloudElasticsearchSecretHelperTest {
 		void shouldHaveCaCrtData() {
 			var secret = builder.buildCertificateSecret(NamespaceTestFactory.NAMESPACE, DATA);
 			
-			assertThat(secret.getStringData()).containsExactly(Map.entry(OzgCloudElasticsearchSecretHelper.CERTIFICATE_SECRET_DATA_KEY, DATA));
+			assertThat(secret.getData()).containsExactly(Map.entry(OzgCloudElasticsearchSecretHelper.CERTIFICATE_SECRET_DATA_KEY, DATA));
 		}
 	}
 }

ozgcloud-elasticsearch-operator/src/test/java/de/ozgcloud/operator/OzgCloudElasticsearchServiceTest.java

@@ -374,7 +374,7 @@ class OzgCloudElasticsearchServiceTest {
 			private static final String SERVER_CERTIFICATE_SECRET_DATA = LoremIpsum.getInstance().getWords(1);
 			private static final String SERVER_CERTIFICATE_NAMESPACE = LoremIpsum.getInstance().getWords(1);
 			private static final Secret SERVER_CERTIFICATE_SECRET = SecretTestFactory.createBuilder()
-					.addToStringData(SERVER_CERTIFICATE_SECRET_DATA_KEY, SERVER_CERTIFICATE_SECRET_DATA)
+					.addToData(SERVER_CERTIFICATE_SECRET_DATA_KEY, SERVER_CERTIFICATE_SECRET_DATA)
 					.build();
 			private static final Secret CREDENTIAL_SECRET = SecretTestFactory.create();
 			@Mock