Resolves: #2007641 - rebase Varnish to 6.6.2
Resolves: #1984185 - Rebase varnish to 6.5.2 Resolves: #1982858 - CVE-2021-36740 varnish: HTTP/2 request smuggling attack via a large Content-Length header for a POST request
The content of this branch was automatically imported from Fedora ELN with the following as its source: https://src.fedoraproject.org/rpms/varnish#45b447537f587a52425a37174c43ee13d912d7da