Enforce to use npm for all scripts

.npmrc

@@ -1 +1,2 @@
 save-exact = true
+engine-strict = true

package-lock.json

@@ -42,6 +42,12 @@
         "tailwindcss": "3.1.8",
         "vite": "3.0.9",
         "vite-tsconfig-paths": "3.5.0"
+      },
+      "engines": {
+        "node": ">=14",
+        "npm": ">=6",
+        "pnpm": "please-use-npm",
+        "yarn": "please-use-npm"
       }
     },
     "node_modules/@ampproject/remapping": {

package.json

@@ -3,6 +3,12 @@
   "description": "Template for creating a comprehensive virtual CV for developers.",
   "version": "0.0.1",
   "private": true,
+  "engines": {
+    "node": ">=14",
+    "npm": ">=6",
+    "yarn": "please-use-npm",
+    "pnpm": "please-use-npm"
+  },
   "scripts": {
     "dev": "astro dev",
     "build": "astro build",