Increase `Access-Control-Max-Age` header in Snowplow collector endpoint
@timzallmann pointed out on Slack that the Snowplow collector endpoint sets
Access-Control-Max-Age to a very low value:
As I see a couple of issues that seem to be affecting overall application performance due to snowplow tracking:
Why do we have only Access-Control-Max-Age: 5 in production and not longer?
Since the contents of the preflight request are very unlikely to change, we should set this at the highest possible value to improve performance. See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Max-Age for reference.