Remove trailing comma for CI build

Author: Ryan Albrecht

client/src/index.js

@@ -13,7 +13,7 @@ if (process.env.REACT_APP_SENTRY_DSN) {
     dsn: process.env.REACT_APP_SENTRY_DSN,
     release: process.env.REACT_APP_GIT_SHA,
     integrations: [new BrowserTracing(), new Replay({
-      sessionSampleRate: 1.0,
+      sessionSampleRate: 1.0
     })],
     tracesSampleRate: 1.0
   });