add 1password extension for vscode

pkgs/applications/editors/vscode/extensions/default.nix

@@ -42,6 +42,18 @@ let
           maintainers = with lib.maintainers; [ kamadorueda ];
         };
       };
+      
+      _1Password.op-vscode = buildVscodeMarketplaceExtension {
+        mktplcRef = {
+          publisher = "1Password";
+          name = "op-vscode";
+          version = "1.0.0";
+          sha256 = "sha256-ZeKTP3WKjyuR/ryBdJRHXJT+l2gbY4QnWNTsN9+4nOA=";
+        };
+        meta = {
+          license = lib.licenses.mit;
+        };
+      };
 
       a5huynh.vscode-ron = buildVscodeMarketplaceExtension {
         mktplcRef = {