Update dependency io.undertow:undertow-core to v2.2.8.Final (#39)
Update dependency io.undertow:undertow-core to v2.2.8.Final (#39)

Co-authored-by: Renovate Bot <c71e7261d37a4f6ae4cfb0cbd79081310a237e67@renovateapp.com>
pac4j/undertow-pac4j-demo,pac4j/undertow-pac4j-demo