添加微信支付签发的证书MIME类型

Signed-off-by: JerryYan <792602257@qq.com>

crmeb/config/upload.php

@@ -36,6 +36,7 @@ return [
         'image/x-icon',
         'image/vnd.microsoft.icon',
         'application/x-x509-ca-cert',
+        'application/x-pem-file',
     ],
     //驱动模式，此配置优先与后台配置，后台添加配置请加前缀，例如添加七牛云配置：accessKey 后台添加变量名 qiniu_accessKey
     'stores' => [