chore: fix stack's nix integration

wolfgangwalther · wolfgangwalther · commit 9434df892a12 · 2025-07-08T19:59:47.000+02:00
The pkgconfig package has been renamed to pkg-config in... February
2019. So this has not been working for quite some time.
diff --git a/stack.yaml b/stack.yaml
@@ -2,9 +2,8 @@ resolver: lts-22.44 # 2025-05-02, GHC 9.6.7
 
 nix:
   packages:
-    - pcre
-    - pkgconfig
-    - postgresql
+    - libpq
+    - pkg-config
     - zlib
   # disable pure by default so that the test environment can be passed
   pure: false
