misc(gitignore): Add new monorepo setup gitignore paths (#4064)

Author: krystofwoldrich

.gitignore

@@ -76,8 +76,18 @@ yalc.lock
 .yarn
 
 # E2E tests
+/dev-packages/e2e-tests/react-native-versions
 test/react-native/versions
 node_modules.bak
 
 # Created by Sentry Metro Plugin
 .sentry/
+
+# Yarn
+.yarn/*
+!.yarn/releases
+!.yarn/plugins
+.pnp.*
+
+# Sentry React Native Monorepo
+/packages/core/README.md