feat(timeout): Add request timeout flag

[tfadeyi]

📋 Changes

• Adds a new flag, --web.timeout, to set the request timeout for the exporter webserver.
• Update the helm chart to include the new flag.

📚 References

• error fetching the log events from Auth0 #110

[hobbsh]

Would this end up functionally the same as scrapeTimeout in a ServiceMonitor?

Timeout after which Prometheus considers the scrape to be failed.
If empty, Prometheus uses the global scrape timeout unless it is less than the target’s scrape interval value in which the latter is used.

[tfadeyi]

Would this end up functionally the same as scrapeTimeout in a ServiceMonitor?

Timeout after which Prometheus considers the scrape to be failed.

If empty, Prometheus uses the global scrape timeout unless it is less than the target’s scrape interval value in which the latter is used.

It is true, I wanted to make the exporter web server more configurable. I might still make the default, no timeout.

But I'll address some of the other points like the health check in separate PR.