packages/dream2nix-overrides: use version-gated vips 8.12.2

packages/dream2nix-overrides/nodejs/default.nix

@@ -7,13 +7,36 @@
   ...
 }: 
 
+let
+  versionGate = pkg: target:
+    assert
+      lib.assertMsg (lib.versionAtLeast target.version pkg.version)
+      "${pkg.name} has reached the desired version upstream";
+      target;
+
+  vips_8_12_2' = pkgs.vips.overrideAttrs (_: {
+    version = "8.12.2";
+    src = pkgs.fetchFromGitHub {
+      owner = "libvips";
+      repo = "libvips";
+      rev = "v8.12.2";
+      sha256 = "sha256-ffDJJWe/SzG+lppXEiyfXXL5KLdZgnMjv1SYnuYnh4c=";
+      extraPostFetch = ''
+        rm -r $out/test/test-suite/images/
+      '';
+    };
+  });
+
+  vips_8_12_2 = versionGate pkgs.vips vips_8_12_2';
+in
+
 {
   sharp.build = with pkgs; {
     nativeBuildInputs = old: old ++ [
       pkg-config
     ];
     buildInputs = old: old ++ [
-      vips
+      vips_8_12_2
     ];
   };
   ghost.build = {