use Node 8 types

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "svelte",
-  "version": "3.6.6",
+  "version": "3.6.7",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -61,9 +61,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "12.0.12",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.0.12.tgz",
-      "integrity": "sha512-Uy0PN4R5vgBUXFoJrKryf5aTk3kJ8Rv3PdlHjl6UaX+Cqp1QE0yPQ68MPXGrZOfG7gZVNDIJZYyot0B9ubXUrQ==",
+      "version": "8.10.50",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.50.tgz",
+      "integrity": "sha512-+ZbcUwJdaBgOZpwXeT0v+gHC/jQbEfzoc9s4d0rN0JIKeQbuTrT+A2n1aQY6LpZjrLXJT7avVUqiCecCJeeZxA==",
       "dev": true
     },
     "@types/resolve": {

package.json

@@ -57,7 +57,7 @@
   "homepage": "https://github.com/sveltejs/svelte#README",
   "devDependencies": {
     "@types/mocha": "^5.2.7",
-    "@types/node": "=12",
+    "@types/node": "=8",
     "@typescript-eslint/eslint-plugin": "^1.11.0",
     "@typescript-eslint/parser": "^1.11.0",
     "acorn": "^6.2.0",