Update caddy to 0.11.1 (#2321)
Update caddy to 0.11.1 (#2321)

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>
ii/coredns,jremond/coredns,yongtang/coredns,chrisohaver/coredns,johnbelamaric/coredns,miekg/coredns,coredns/coredns,ii/coredns,jremond/coredns,johnbelamaric/coredns,miekg/coredns