fix issue with gpg-agent not starting pinentry

modules/hosts/takamaki/takamaki.nix

@@ -18,6 +18,13 @@
       stateVersion = "26.11";
     };
 
+    services.gpg-agent = {
+      enable = true;
+      extraConfig = ''
+        pinentry-program /usr/bin/pinentry
+      '';
+    };
+
     features = {
       shells.zsh = {
         enable = true;