Pin R to 4.4.3 until inline-r is fixed

See tweag/HaskellR#431

Author: hamishmack

nix/pkgs.nix

@@ -9,5 +9,17 @@ import inputs.nixpkgs {
     inputs.haskell-nix.overlay
     inputs.iohk-nix.overlays.haskell-nix-crypto
     inputs.iohk-nix.overlays.haskell-nix-extra
+    # Pin R to 4.4.3 until inline-r is fixed.
+    # See https://github.com/tweag/HaskellR/issues/431
+    (final: prev: {
+      R = prev.R.overrideAttrs rec {
+        version = "4.4.3";
+        src = final.fetchurl {
+          url = "https://cran.r-project.org/src/base/R-${
+            final.lib.versions.major version}/R-${version}.tar.gz";
+          hash = "sha256-DZPSJEQt6iU8KwhvCI220NPP2bWSzVSW6MshQ+kPyeg=";
+        };
+      };
+    })
   ];
 }