fix #I17OXT

zlt-commons/zlt-auth-client-spring-boot-starter/src/main/java/com/central/oauth2/common/util/AuthUtils.java

@@ -52,7 +52,7 @@ public class AuthUtils {
         Enumeration<String> headers = request.getHeaders(CommonConstant.TOKEN_HEADER);
         while (headers.hasMoreElements()) {
             String value = headers.nextElement();
-            if ((value.toLowerCase().startsWith(OAuth2AccessToken.BEARER_TYPE))) {
+            if ((value.startsWith(OAuth2AccessToken.BEARER_TYPE))) {
                 String authHeaderValue = value.substring(OAuth2AccessToken.BEARER_TYPE.length()).trim();
                 int commaIndex = authHeaderValue.indexOf(',');
                 if (commaIndex > 0) {