test: add cpptools

Signed-off-by: loongtao.zhang <[email protected]>

Author: cathaysia

config.toml

@@ -1,6 +1,7 @@
 vscode_version = "1.84.2"
 
 extensions = [
+  "ms-vscode.cpptools",
   "ms-python.debugpy",
   "42crunch.vscode-openapi",
   "aaron-bond.better-comments",

example/flake.nix

@@ -19,11 +19,13 @@
           pkgs = pkgs;
           lib = pkgs.lib;
         };
-      in {
+      in
+      {
         devShell = pkgs.mkShell {
           buildInputs = [
             plugins.eamodio.gitlens
             (builtins.getAttr "42crunch" plugins).vscode-openapi
+            plugins.ms-vscode.cpptools
           ];
         };
       });