Fix release dist to include static binaries

Previously, the release distributions included the dynamic (rather than
statically-built) binaries. There was a subtle bug that caused the
static haskell.nix project to be ignored and use the default (dynamic).

It was introduced by b6a024c.

Fixes: #2108
See also: PR #1962

Author: sgillespie

flake.nix

@@ -483,7 +483,7 @@
           let
             mkDist = platform: project:
               let
-                exeVals = builtins.attrValues exes;
+                exeVals = builtins.attrValues (setGitRevs project.exes);
                 name = "cardano-db-sync-${version}-${platform}";
                 version = project.exes.cardano-db-sync.identifier.version;
                 env = {