请教大佬一个问题,CentOS8的Wget提示证书不信任

MikuMiku大佬：
刚才装了CentOS8来玩一下，准备下载mariadb来编译的时候
wget https://mirrors.syringanetworks.net/mariadb/mariadb-10.5.4/source/mariadb-10.5.4.tar.gz
wget https://mirror.lstn.net/mariadb//mariadb-10.5.4/source/mariadb-10.5.4.tar.gz
Wget提示我证书错误

Resolving mirror.lstn.net (mirror.lstn.net)… 2607:ff68:1:4c::100, 64.31.0.51
Connecting to mirror.lstn.net (mirror.lstn.net)|2607:ff68:1:4c::100|:443… connected.
ERROR: The certificate of ‘mirror.lstn.net’ is not trusted.
ERROR: The certificate of ‘mirror.lstn.net’ has expired.

Resolving mirrors.syringanetworks.net (mirrors.syringanetworks.net)… 2605:5800:1:1::7, 66.232.64.7
Connecting to mirrors.syringanetworks.net (mirrors.syringanetworks.net)|2605:5800:1:1::7|:443… failed: Connection timed out.
Connecting to mirrors.syringanetworks.net (mirrors.syringanetworks.net)|66.232.64.7|:443… connected.
ERROR: The certificate of ‘mirrors.syringanetworks.net’ is not trusted.
ERROR: The certificate of ‘mirrors.syringanetworks.net’ has expired.

然后我用浏览器打开这两个节点发现证书并没有问题，换curl下载也没问题。然后我换CentOS7用wget拉也没出问题。别让我加–no-check-certificate。我想知道为什么会出现这个问题。