Add Andrei Dziahel as haskell maintainer

and remove myself

library/haskell

@@ -1,5 +1,5 @@
-Maintainers: Alistair Burrowes <[email protected]> (@AlistairB),
-             Albert Krewinkel <[email protected]> (@tarleb)
+Maintainers: Albert Krewinkel <[email protected]> (@tarleb),
+             Andrei Dziahel <[email protected]> (@develop7)
 GitRepo: https://github.com/haskell/docker-haskell
 
 Tags: 9.6.3-buster, 9.6-buster, 9-buster, buster, 9.6.3, 9.6, 9, latest