codesandbox: use npm 8.5

Our engines requires this, but it's not in Node v16.

Hat tip to @trevor-scheer who implemented this in the apollo-utils repo.

Author: glasser

.codesandbox/ci.json

@@ -1,5 +1,6 @@
 {
   "buildCommand": "compile",
+  "installCommand": "install-with-npm-8.5",
   "packages": [
     "packages/usage-reporting-protobuf",
     "packages/server",

package.json

@@ -8,6 +8,7 @@
     "compile": "tsc --build tsconfig.build.json",
     "compile:clean": "tsc --build tsconfig.build.json --clean",
     "watch": "tsc --build tsconfig.build.json --watch",
+    "install-with-npm-8.5": "npm i -g npm@^8.5.0 && npm i",
     "postinstall": "npm run compile",
     "pretest": "tsc --build tsconfig.json",
     "test": "jest --verbose",