Update `directory` submodule to v1.2.6.2 release
Update `directory` submodule to v1.2.6.2 release

The v1.2.6.1 release uploaded to Hackage is broken, we don't
want to bundle a release that's non-installable from Hackage

sgillespie/ghc,mettekou/ghc,vTurbine/ghc,mettekou/ghc,ezyang/ghc,snoyberg/ghc,vikraman/ghc,shlevy/ghc,snoyberg/ghc,sdiehl/ghc,vikraman/ghc,ezyang/ghc,sgillespie/ghc,snoyberg/ghc,mettekou/ghc,snoyberg/ghc,tjakway/ghcjvm,mettekou/ghc,sgillespie/ghc,shlevy/ghc,ezyang/ghc,tjakway/ghcjvm,tjakway/ghcjvm,sdiehl/ghc,sdiehl/ghc,sgillespie/ghc,olsner/ghc,vikraman/ghc,olsner/ghc,sdiehl/ghc,tjakway/ghcjvm,sgillespie/ghc,vTurbine/ghc,shlevy/ghc,vTurbine/ghc,sgillespie/ghc,ezyang/ghc,tjakway/ghcjvm,ezyang/ghc,vTurbine/ghc,snoyberg/ghc,vTurbine/ghc,shlevy/ghc,tjakway/ghcjvm,mettekou/ghc,olsner/ghc,snoyberg/ghc,sgillespie/ghc,mettekou/ghc,mettekou/ghc,sdiehl/ghc,tjakway/ghcjvm,sdiehl/ghc,vTurbine/ghc,vTurbine/ghc,olsner/ghc,shlevy/ghc,olsner/ghc,vikraman/ghc,ezyang/ghc,vikraman/ghc,shlevy/ghc,olsner/ghc,vikraman/ghc,olsner/ghc,ezyang/ghc,snoyberg/ghc,shlevy/ghc,vikraman/ghc,sdiehl/ghc