refactor: Ruma upstreaming, half-baked edition

Co-authored-by: Jade Ellis <jade@ellis.link>

src/service/globals/mod.rs

@@ -59,7 +59,7 @@ impl crate::Service for Service {
 		let (ber_count, ber_bytes) = self.bad_event_ratelimiter.read().iter().fold(
 			(0_usize, 0_usize),
 			|(mut count, mut bytes), (event_id, _)| {
-				bytes = bytes.saturating_add(event_id.capacity());
+				bytes = bytes.saturating_add(event_id.as_bytes().len());
 				bytes = bytes.saturating_add(size_of::<RateLimitState>());
 				count = count.saturating_add(1);
 				(count, bytes)