)

Co-authored-by: Luca Forstner <luca.forstner@sentry.io>

[Gitflow] Merge master into develop

When getting the user from the scope, the user can also be an empty
object, which doesn't work with null coalescing. This checks to see if
the user exists and that it's not empty in all scopes

Fixes getsentry/sentry#70347

I dropped the ball on this a bit to deprecate but removing it now should
still be fine.

…11998)

In order to keep bundle size compact, performance integrations (except
for http & fetch) have to be manually added for serverless packages.

This means that users will have to do e.g. this if they want to have
mysql instrumented:

```js
import * as Sentry from '@sentry/aws-serverless';

Sentry.init({
  integrations: [Sentry.mysqlIntegration()]
});
```

Closes #11991

---------

Co-authored-by: Lukas Stracke <lukas.stracke@sentry.io>

`snapshot` is a public API.

I think the other methods we do not need to expose (?).

With this, usage will be:

```ts
const canvas = getClient()?.getIntegrationByName<ReturnType<typeof replayCanvasIntegration>>('ReplayCanvas');
await canvas.snapshot();
```

Closes #11971