Merge pull request #116 from jumpserver/pr@dev@feat_timezone_z

fix: fix the time zone 'Z'

Author: Aaron3S

backend/modules/src/main/java/org.jumpserver.chen.modules/mysql/MysqlConnectionManager.java

@@ -58,7 +58,8 @@ private void setTimeZone(Connection conn) throws SQLException {
         ZonedDateTime now = ZonedDateTime.now(zoneId);
         ZoneOffset offset = now.getOffset();
 
-        String offsetStr = offset.toString();
+        String offsetStr = offset.equals(ZoneOffset.UTC) ? "+00:00" : offset.toString();
+
 
         try (Statement stmt = conn.createStatement()) {
             stmt.execute("SET time_zone = '" + offsetStr + "'");