Use proper SQLServer dialect for Hibernate 6+

This commit fixes the Hibernate dialect lookup for SQLServer as it was
previously using a dialect that has been deprecated. In recent
versions, the standard SQLServerDialect is the one we should be using.

Closes gh-31896

spring-orm/src/main/java/org/springframework/orm/jpa/vendor/HibernateJpaVendorAdapter.java

@@ -39,6 +39,7 @@
 import org.hibernate.dialect.OracleDialect;
 import org.hibernate.dialect.PostgreSQL95Dialect;
 import org.hibernate.dialect.SQLServer2012Dialect;
+import org.hibernate.dialect.SQLServerDialect;
 import org.hibernate.dialect.SybaseDialect;
 import org.hibernate.resource.jdbc.spi.PhysicalConnectionHandlingMode;
 
@@ -205,7 +206,7 @@ protected Class<?> determineDatabaseDialectClass(Database database) {
 				case MYSQL -> MySQLDialect.class;
 				case ORACLE -> OracleDialect.class;
 				case POSTGRESQL -> org.hibernate.dialect.PostgreSQLDialect.class;
-				case SQL_SERVER -> SQLServer2012Dialect.class;
+				case SQL_SERVER -> SQLServerDialect.class;
 				case SYBASE -> SybaseDialect.class;
 				default -> null;
 			};