Fix CLI build issue

[jakubno]

Load update notifier dynamically

We needed update the package because of vulnerabilities

If we don't load it asynchronously there's following error.

packages/cli generate-ref: /home/runner/work/E2B/E2B/packages/cli/dist/index.js:55406
packages/cli generate-ref: var updateNotifier = __toESM(require("update-notifier"));
packages/cli generate-ref:                              ^
packages/cli generate-ref: Error [ERR_REQUIRE_ESM]: require() of ES Module /home/runner/work/E2B/E2B/node_modules/.pnpm/[email protected]/node_modules/update-notifier/index.js from /home/runner/work/E2B/E2B/packages/cli/dist/index.js not supported.
packages/cli generate-ref: Instead change the require of /home/runner/work/E2B/E2B/node_modules/.pnpm/[email protected]/node

[changeset-bot]

🦋 Changeset detected

Latest commit: aa7a2bf

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@e2b/cli	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[ValentaTomas]

Are we sure this async loading works?
Also it might be possible to tweak https://github.com/e2b-dev/E2B/blob/main/packages/cli/tsup.config.js#L5 which was previously necessary for the update-notifier packaging to fix this without changing the actual code.