[npm-app] fix bun run build

I was getting this error when running bun run build in /npm-app:

  ⎿  Error: $ bun run scripts/build-binary.js codebuff $(node -p "require('./release/package.json').version")
     error: Script not found "scripts/build-binary.js"
     error: script "build" exited with code 1

This was caused by calling `bun run scripts/build-binary.js`. When you pass
a javascript file directly to bun, you don't need the `run` keyword.

Author: cvick32

npm-app/package.json

@@ -20,7 +20,7 @@
   },
   "scripts": {
     "typecheck": "tsc --noEmit -p .",
-    "build": "bun run scripts/build-binary.js codebuff $(node -p \"require('./release/package.json').version\")",
+    "build": "bun scripts/build-binary.js codebuff $(node -p \"require('./release/package.json').version\")",
     "release": "bun run scripts/release.js",
     "start-bin": "bun run build && ./bin/codebuff",
     "start": "bun run src/index.ts --cwd ..",