Report errors in tests to test-metamask Sentry project (MetaMask#7924)

Previously, all errors encountered during testing or production were
sent to the primary `metamask` Sentry project, whereas development
errors were sent to `test-metamask` instead. This change ensures that
errors encountered during tests are sent to `test-metamask` as well.

app/scripts/lib/setupSentry.js

@@ -18,7 +18,7 @@ function setupSentry (opts) {
   // detect brave
   const isBrave = Boolean(window.chrome.ipcRenderer)
 
-  if (METAMASK_DEBUG) {
+  if (METAMASK_DEBUG || process.env.IN_TEST) {
     console.log('Setting up Sentry Remote Error Reporting: SENTRY_DSN_DEV')
     sentryTarget = SENTRY_DSN_DEV
   } else {