Add migration_4 scenario to e2e migration workflow

Author: ben-kaufman

.github/workflows/e2e_migration.yml

@@ -85,6 +85,7 @@ jobs:
           - { name: migration_1-restore, grep: "@migration_1" }
           - { name: migration_2-migration, grep: "@migration_2" }
           - { name: migration_3-with-passphrase, grep: "@migration_3" }
+          - { name: migration_4-with-sweep, grep: "@migration_4" }
 
     name: e2e-tests - ${{ matrix.rn_version }} - ${{ matrix.scenario.name }}