Disable Celerybeat auto instrumentation in sentry dev environment

[wedamija]

We enable this by default in the sentry codebase.

sentry/src/sentry/utils/sdk.py

Line 458 in 76465de

CeleryIntegration(monitor_beat_tasks=True, exclude_beat_tasks=exclude_beat_tasks),

This should be disabled in dev and enabled in saas/st/self-hosted. We should make this a setting that can be overridden.