fix(bun): Drop the now-unused @apm-js-collab/code-transformer-bundler-plugins dependency

`@sentry/bun/plugin` now only re-exports from `@sentry/server-utils/orchestrion/bun`
(which vendors the transformer), so the direct import is gone. Remove the leftover
runtime dependency so installs don't pull an unused package.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: mydea

packages/bun/package.json

@@ -42,7 +42,6 @@
     "access": "public"
   },
   "dependencies": {
-    "@apm-js-collab/code-transformer-bundler-plugins": "^0.7.4",
     "@sentry/core": "10.67.0",
     "@sentry/conventions": "^0.20.0",
     "@sentry/node": "10.67.0",