remove em dashes

apps/status/src/cache.ts

@@ -1,7 +1,7 @@
 // Tiny in-memory TTL cache keyed by string. Status pages serve the same payload
 // to many visitors during an outage; we don't want every page hit to fan out to
 // Postgres. The cache is per-process; behind a load balancer each replica fills
-// independently, which is fine — short TTLs converge quickly.
+// independently, which is fine - short TTLs converge quickly.
 
 interface Entry<T> { value: T; expires: number }