[FLINK-39252][sqlserver] Fix spotless issue and timestamp startup test assertion

Author: Daishuyuan

flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-sqlserver/src/main/java/org/apache/flink/cdc/connectors/sqlserver/source/SqlServerEventDeserializer.java

@@ -51,6 +51,7 @@ public class SqlServerEventDeserializer extends DebeziumEventDeserializationSche
     private static final long serialVersionUID = 1L;
     private final boolean includeSchemaChanges;
     private final List<SqlServerReadableMetadata> readableMetadataList;
+
     /**
      * Cache to compute schema differences for ALTER events.
      *

flink-cdc-connect/flink-cdc-source-connectors/flink-connector-sqlserver-cdc/src/test/java/org/apache/flink/cdc/connectors/sqlserver/table/SqlServerTableFactoryTest.java

@@ -313,9 +313,10 @@ void testTimestampStartupRequiresTimestampMillis() {
 
         Assertions.assertThatThrownBy(() -> createTableSource(SCHEMA, properties))
                 .isInstanceOf(ValidationException.class)
-                .hasRootCauseMessage(
-                        "To use timestamp startup mode, the startup timestamp millis "
-                                + "'scan.startup.timestamp-millis' must be set.");
+                .hasRootCauseInstanceOf(ValidationException.class)
+                .rootCause()
+                .hasMessageContaining("scan.startup.timestamp-millis")
+                .hasMessageContaining("must be set");
     }
 
     private Map<String, String> getAllOptions() {