nixpkgs/neovim: add groovy treesitter

.config/nixpkgs/neovim/treesitter/grammars.json

@@ -77,5 +77,10 @@
     "repo": "tree-sitter-grammars/tree-sitter-query",
     "rev": "930202c2a80965a7a9ca018b5b2a08b25dfa7f12",
     "sha256": "0274iz2z55m29yk56lmb7sans2k6hpd0nzgrznfx3jwr8dm2jw5r"
+  },
+  "groovy": {
+    "repo": "murtaza64/tree-sitter-groovy",
+    "rev": "86911590a8e46d71301c66468e5620d9faa5b6af",
+    "sha256": "0vbsg5xkdja6xyp8nm7g9fs4ndaq3qz6lq8vk9c7l2znw6bb17gb"
   }
 }