snapcraftcontent.com shows certificate error

[Steve]

We have an automated build pipeline that uses vagrant to build an ubuntu VMWare image. As part of the build it installs multiple snaps from canonical-bos01.cdn.snapcraftcontent.com. This is erroring however as this URL is showing that a certificate in the chain has been revoked. Running it through the Qualys SSL Labs tests here https://www.ssllabs.com/ssltest/analyze.html?d=canonical-bos01.cdn.snapcraftcontent.com shows the certificate has been revoked which we believe is causing our problems.

Would someone be able to investigate please. I've attached a screen shot of the revoked certificates details.
As a work around is there a way to point the snap to come from a different CDN/URL?

Thanks.

Steve Esler