[staging-next] toml11: apply patch for Clang 21 (#444901)

pkgs/by-name/to/toml11/package.nix

@@ -3,6 +3,7 @@
   stdenv,
   fetchFromGitHub,
   cmake,
+  fetchpatch,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -17,6 +18,14 @@ stdenv.mkDerivation (finalAttrs: {
     fetchSubmodules = true;
   };
 
+  patches = [
+    (fetchpatch {
+      name = "literal-operator-whitespace.patch";
+      url = "https://patch-diff.githubusercontent.com/raw/ToruNiina/toml11/pull/285.patch";
+      hash = "sha256-LZPr/cY6BZXC6/rBIAMCcqEdnhJs1AvbrPjpHF76uKg=";
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
   ];