chore: fix presubmit tests failing with 'Error: You must run node-gyp configure first' (#36)

Author: nolanmar511

package.json

@@ -16,7 +16,7 @@
     "lint": "gts check",
     "docs": "echo 'no docs yet'",
     "prepare": "npm run compile",
-    "pretest": "npm run compile && node-pre-gyp build",
+    "pretest": "npm run compile && node-pre-gyp install --build-from-source",
     "posttest": "npm run check && npm run license-check",
     "proto": "npm run proto:profile",
     "proto:profile": "mkdir -p proto && pbjs -t static-module -w commonjs -o proto/profile.js third_party/proto/profile.proto && pbts -o proto/profile.d.ts proto/profile.js",