chore(gitignore): ignore nix result links

Signed-off-by: Evan Lezar <elezar@nvidia.com>

Author: elezar

.gitignore

@@ -225,3 +225,7 @@ rfc.md
 
 # Markdown/mermaid lint tooling deps
 scripts/lint-mermaid/node_modules/
+
+# Nix
+/result
+/result-*