chore: n8n update

.beads/issues.jsonl

@@ -0,0 +1 @@
+{"_type":"issue","id":"nixpkgs-ng1","title":"Configure agent git identity in nixpkgs repo","description":"Git commits are using p@m3ta.dev instead of m3ta-chiron@agentmail.to. The GIT_AUTHOR_NAME and GIT_AUTHOR_EMAIL environment variables are not set in this environment. Need to configure the agent git identity for this repository following the pattern in AGENTS.md","status":"open","priority":2,"issue_type":"task","owner":"p@m3ta.dev","created_at":"2026-04-27T18:16:17Z","created_by":"m3tm3re","updated_at":"2026-04-27T18:16:17Z","dependency_count":0,"dependent_count":0,"comment_count":0}

pkgs/n8n/default.nix

@@ -26,20 +26,20 @@
 in
   stdenv.mkDerivation (finalAttrs: {
     pname = "n8n";
-    version = "2.20.9";
+    version = "2.21.5";
 
     src = fetchFromGitHub {
       owner = "n8n-io";
       repo = "n8n";
       tag = "n8n@${finalAttrs.version}";
-      hash = "sha256-4kKb0P1bHb0NcJokzr0B1lInYg1WmG07yG4A7czTIzY=";
+      hash = "sha256-0EzRLbt7mYD0/IlzxH8e6VTzMR5n8UyzOOm+UA1GgqE=";
     };
 
     pnpmDeps = fetchPnpmDeps {
       inherit (finalAttrs) pname version src;
       pnpm = pnpm_10;
       fetcherVersion = 3;
-      hash = "sha256-ft7n3J7L+u2hwEiR32Jw2k0ZsHCfI5yIB+IfmtB8xMY=";
+      hash = "sha256-q3WO4S3QsTk8HkGebwmRTUjCBX7lOHlIBgoPeosqaJE=";
     };
 
     nativeBuildInputs =