Update regexes.yaml

came across these user agents

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; WOW64; Avant Browser; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)

Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv:1.8.1b1) Gecko/20060601 BonEcho/2.0b1 (Ubuntu-edgy)