containers: Bump to 0.6.0.1

compiler/ghc.cabal.in

ghc/ghc-bin.cabal.in

libraries/Cabal

libraries/containers

libraries/ghci/ghci.cabal.in

libraries/haskeline

libraries/hpc

libraries/libiserv/libiserv.cabal

libraries/parallel

testsuite/tests/backpack/should_run/bkprun05.bkp

testsuite/tests/backpack/should_run/bkprun05.stderr

testsuite/tests/backpack/should_run/bkprun06.bkp

testsuite/tests/driver/T10970.stdout

testsuite/tests/package/all.T

utils/hpc/hpc-bin.cabal

utils/hsc2hs

utils/iserv/iserv.cabal