Haskell: add ghc 9.8.4, bump cabal to 3.12

library/haskell

@@ -4,20 +4,30 @@ GitRepo: https://github.com/haskell/docker-haskell
 
 Tags: 9.10.1-bullseye, 9.10-bullseye, 9-bullseye, bullseye, 9, latest
 Architectures: amd64, arm64v8
-GitCommit: cfaf06d32690811d0eeb16123534a312ee9b8859
+GitCommit: 68ddf626a38f6e76a81df168d1e24bd778b17bef
 Directory: 9.10/bullseye
 
 Tags: 9.10.1-slim-bullseye, 9.10-slim-bullseye, 9-slim-bullseye, slim-bullseye, 9-slim, slim
 Architectures: amd64, arm64v8
-GitCommit: cfaf06d32690811d0eeb16123534a312ee9b8859
+GitCommit: 68ddf626a38f6e76a81df168d1e24bd778b17bef
 Directory: 9.10/slim-bullseye
 
+Tags: 9.8.4-bullseye, 9.8-bullseye, 9.8.4, 9.8
+Architectures: amd64, arm64v8
+GitCommit: 68ddf626a38f6e76a81df168d1e24bd778b17bef
+Directory: 9.8/bullseye
+
+Tags: 9.8.4-slim-bullseye, 9.8-slim-bullseye, 9.8.4-slim, 9.8-slim
+Architectures: amd64, arm64v8
+GitCommit: 68ddf626a38f6e76a81df168d1e24bd778b17bef
+Directory: 9.8/slim-bullseye
+
 Tags: 9.6.6-bullseye, 9.6-bullseye, 9.6.6, 9.6
 Architectures: amd64, arm64v8
-GitCommit: cfaf06d32690811d0eeb16123534a312ee9b8859
+GitCommit: 68ddf626a38f6e76a81df168d1e24bd778b17bef
 Directory: 9.6/bullseye
 
 Tags: 9.6.6-slim-bullseye, 9.6-slim-bullseye, 9.6.6-slim, 9.6-slim
 Architectures: amd64, arm64v8
-GitCommit: cfaf06d32690811d0eeb16123534a312ee9b8859
+GitCommit: 68ddf626a38f6e76a81df168d1e24bd778b17bef
 Directory: 9.6/slim-bullseye