Increase replay buffering from 60 seconds to 5 minutes to allow for easier debugging and match requestly

Unfortunately, the 60 seconds buffering in Sentry often is too short for effective debugging errors. In many cases the origin of the error, especially with B2B applications, happens because something the user did 2-3 minutes ago.

Other tools like https://requestly.com/products/session-book/ have a 5 minute look back (which is excessive, since we 3 minutes were enough in all our test cases).

Increasing the replay buffering value would tremendously improve the usefulness of this feature.