Set the containers dependency to the minimum knowingly working version. CI build is failing with 2.3
Set the containers dependency to the minimum knowingly working version.
CI build is failing with 2.3

abate/opam-repository,seliopou/opam-repository,AltGr/opam-repository,mjambon/opam-repository,emillon/opam-repository,kkirstein/opam-repository,djs55/opam-repository,pqwy/opam-repository,djs55/opam-repository,cakeplus/opam-repository,Leonidas-from-XIV/opam-repository,AltGr/opam-repository,talex5/opam-repository,hannesm/opam-repository,Chris00/opam-repository,Chris00/opam-repository,fpottier/opam-repository,andersfugmann/opam-repository,lefessan/opam-repository,jhwoodyatt/opam-repository,ocaml/opam-repository,nberth/opam-repository,jhwoodyatt/opam-repository,jonludlam/opam-repository,pqwy/opam-repository,dbuenzli/opam-repository,yallop/opam-repository,orbitz/opam-repository,nberth/opam-repository,Leonidas-from-XIV/opam-repository,kkirstein/opam-repository,mjambon/opam-repository,lefessan/opam-repository,jonludlam/opam-repository,fpottier/opam-repository,ocaml/opam-repository,codinuum/opam-repository,pirbo/opam-repository,seliopou/opam-repository,arlencox/opam-repository,toots/opam-repository,toots/opam-repository,emillon/opam-repository,codinuum/opam-repository,astrada/opam-repository,talex5/opam-repository,c-cube/opam-repository,dbuenzli/opam-repository,astrada/opam-repository,hakuch/opam-repository,c-cube/opam-repository,yallop/opam-repository,andersfugmann/opam-repository,pirbo/opam-repository,hannesm/opam-repository