fix: ignore "unauthorized" errors in Sentry

Pass ignoreErrors: ['unauthorized'] to initLogger so the Sentry SDK
drops events whose exception message is "unauthorized" — these are
client-side auth failures from score-api, expected as 4xx responses,
not actionable at the SDK level. Removes ~25k events/cycle across
SNAPSHOT-SEQUENCER-26/-37/-38.

Filtering happens in @snapshot-labs/snapshot-sentry via Sentry's
built-in ignoreErrors option (snapshot-labs/snapshot-sentry#18) — no
local capture wrapper needed.

Author: wa0x6e

src/instrument.ts

@@ -1,3 +1,3 @@
 import { initLogger } from '@snapshot-labs/snapshot-sentry';
 
-initLogger();
+initLogger({ ignoreErrors: ['unauthorized'] });