Ignoring Shibboleth IDP signer certificate expiration date

Hi.
Is it possible for Keycloak to ignore the expiration date of a Shiboleth IDP signer certificate?

According to the SAML / Shibboleth documentation, the signer certificate is only a convenience wrapper around the public key, and therefore the remaining attributes are not in use.

https://shibboleth.atlassian.net/wiki/spaces/CONCEPT/pages/948470554/SAMLKeysAndCertificates

So far, I have not found any configuration or documentation related to ignoring the certificate expiration date in Keycloak. Is this feature supported?