Add patch-package to .#wasm shell

Author: palas

flake.nix

@@ -238,6 +238,7 @@
                   wasm-pkgs.pkg-config
                   wasm-pkgs.curl
                   wasm-pkgs.git
+                  wasm-pkgs.patch-package
                   inputs.ghc-wasm-meta.packages.${system}.all_9_10
                   wasm.libsodium
                   wasm.secp256k1