swiftPackages_ng.swiftpm: propagate swiftpmHook

Ideally, packages would opt into hook behavior by including the hook
explicitly, but that would be a significantly breaking change. At least
for now, propagate the hook for compatibility.

pkgs/development/compilers/swift_ng/by-name/sw/swiftpm/package.nix

@@ -21,6 +21,7 @@
   swift-syntax,
   swift-system,
   swift-tools-support-core,
+  swiftpmHook,
   swift_release,
   swift_sources,
 }:
@@ -117,6 +118,8 @@ stdenv.mkDerivation (finalAttrs: {
     swift
   ];
 
+  propagatedBuildInputs = [ swiftpmHook ];
+
   buildInputs = [
     sqlite
     swift-argument-parser