core: bump github.com/getsentry/sentry-go from 0.15.0 to 0.16.0 (#4179)

* core: bump github.com/getsentry/sentry-go from 0.15.0 to 0.16.0

Bumps [github.com/getsentry/sentry-go](https://github.com/getsentry/sentry-go) from 0.15.0 to 0.16.0.
- [Release notes](https://github.com/getsentry/sentry-go/releases)
- [Changelog](https://github.com/getsentry/sentry-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/sentry-go/compare/v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: github.com/getsentry/sentry-go
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* update custom tracer

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jens Langhammer <jens.langhammer@beryju.org>

internal/outpost/ak/global.go

@@ -51,6 +51,7 @@ func doGlobalSetup(outpost api.Outpost, globalConfig *api.Config) {
 		err := sentry.Init(sentry.ClientOptions{
 			Dsn:           globalConfig.ErrorReporting.SentryDsn,
 			Environment:   globalConfig.ErrorReporting.Environment,
+			EnableTracing: true,
 			TracesSampler: sentryutils.SamplerFunc(float64(globalConfig.ErrorReporting.TracesSampleRate)),
 			Release:       fmt.Sprintf("authentik@%s", constants.VERSION),
 			HTTPTransport: webutils.NewUserAgentTransport(constants.OutpostUserAgent(), http.DefaultTransport),