fix(prevent): Add overwatch forward debug logging (#103080)

Add feature flag for overwatch forwarding debug logging conditional

Author: suejung-sentry

src/sentry/options/defaults.py

@@ -671,6 +671,8 @@
 register("codecov.forward-webhooks.regions", default=[], flags=FLAG_AUTOMATOR_MODIFIABLE)
 # if a region is in this list, it's safe to forward to overwatch
 register("overwatch.enabled-regions", default=[], flags=FLAG_AUTOMATOR_MODIFIABLE)
+# enable verbose debug logging for overwatch webhook forwarding
+register("overwatch.forward-webhooks.verbose", default=False, flags=FLAG_AUTOMATOR_MODIFIABLE)
 
 # GitHub Integration
 register("github-app.id", default=0, flags=FLAG_AUTOMATOR_MODIFIABLE)