[`@sentry/rollup-plugin`] Make `rollup` an optional peerDependency

[wojtekmaj]

Problem: @sentry/rollup-plugin defines rollup as mandatory peerDependency. However:

Vite 8 is rolldown-based. @sentry/vite-plugin which depends on @sentry/rollup-plugin realistically works in environments where rollup is missing. So having rollup as a mandatory dependency is not correct.

In Yarn, this results in warnings:

Package @sentry/vite-plugin@npm:5.0.0 is requested to provide rollup by its descendants

@sentry/vite-plugin@npm:5.0.0
└─ @sentry/rollup-plugin@npm:5.0.0 [ea3b4] (via >=3.2.0)

✘ Package @sentry/vite-plugin@npm:5.0.0 does not provide rollup.

Solution: add peerDependenciesMeta and mark rollup as optional.

[linear-code]

BUNDLER-116

[timfish]

Makes sense since the Rollup plugin is also used for Rolldown too!

[max-flizpay]

Since Vite v8 - rollup has been replaced with the new rolldown
In my project it seems that @sentry/vite-plugin > @sentry/rollup-plugin is the only thing that pulls the rollup dependency..

On top of that: the rollup dependency seems to have a few 'security issues':
https://security.snyk.io/package/npm/rollup/versions

Thanks for the work youre doing!