Make 911 call notifications last longer

[Pyro]

As a cop its really hard to get across the map in the time that it gives to notify for a 911 dispatch, especially if you are on foot. Having longer lasting scenes for cops to respond to would be better for roleplay.

[Wizner]

Always lose the call locations cause of this +1

[Burner_xo]

YESSS BUFF FALSE 911 CALLS