ghc884: fixup brittany version to 0.13.1.2

Author: smunix

configuration-ghc-88.nix

@@ -24,6 +24,9 @@ let
       stylish-haskell = hself.callCabal2nixWithOptions "stylish-haskell"
         inputs.stylish-haskell-01220 (pkgs.lib.concatStringsSep " " [ ]) { };
 
+      brittany = hself.callCabal2nixWithOptions "brittany" inputs.brittany-01312
+        (pkgs.lib.concatStringsSep " " [ ]) { };
+
       hls-stylish-haskell-plugin =
         hself.callCabal2nixWithOptions "hls-stylish-haskell-plugin"
         ./plugins/hls-stylish-haskell-plugin (pkgs.lib.concatStringsSep " " [ ])

flake.lock

@@ -55,6 +55,10 @@
       url = "https://hackage.haskell.org/package/fourmolu-0.5.0.1/fourmolu-0.5.0.1.tar.gz";
       flake = false;
     };
+    brittany-01312 = {
+      url = "https://hackage.haskell.org/package/brittany-0.13.1.2/brittany-0.13.1.2.tar.gz";
+      flake = false;
+    };
     hlint = {
       url = "https://hackage.haskell.org/package/hlint-3.3.6/hlint-3.3.6.tar.gz";
       flake = false;