Replace deprecated `raven-go` and `logrus_sentry` with `sentry-go`

[JamieMagee]

raven-go and logrus_sentry are both deprecated. The Sentry team archived raven-go in favor of sentry-go, and logrus_sentry depends on it.

Both are only used in main.go. sentry-go has a built-in logrus hook (sentry-go/logrus) so the swap is pretty contained. This also drops the transitive certifi/gocertifi dependency.

[jeffwidman]

(copying over my comment from before this was open-sourced)

Also related:

• Add logrus support getsentry/sentry-go#471
• log/slog: structured, leveled logging golang/go#56345

If structured logging lands in the stdlib, we may wish to simply go straight to that rather than mucking around anymore with logrus.

[JamieMagee]

Structured logging has already landed in stdlib: https://go.dev/blog/slog