gitlab-ci: Reintroduce DWARF-enabled bindists
gitlab-ci: Reintroduce DWARF-enabled bindists

It seems that this was inadvertently dropped in
1285d6b95fbae7858abbc4722bc2301d7fe40425.

sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc