Fix nix-hashes.yml syntax error

Author: itsjoyeb

.github/workflows/nix-hashes.yml

@@ -5,9 +5,6 @@ permissions:
 
 on:
   workflow_dispatch:
-      - "nix/scripts/**"
-      - "patches/**"
-      - ".github/workflows/nix-hashes.yml"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}