ref(build): Use base rollup config function in `@sentry/integrations` (#4652)
ref(build): Use base rollup config function in `@sentry/integrations` (#4652)

This uses the config-generating function introduced in https://github.com/getsentry/sentry-javascript/pull/4650 to generate the rollup config for the integrations package. There is no effect on bundle contents.
getsentry/raven-js,getsentry/raven-js,getsentry/raven-js,getsentry/raven-js