update tests.yml

Author: yuhengshs

.github/workflows/callable-e2e-tests.yml

@@ -41,6 +41,7 @@ jobs:
       sample_name: ${{ toJSON(matrix.integ-config.sample_name) || '[""]' }}
       browser: ${{ toJSON(matrix.integ-config.browser) || '[""]' }}
       backend: ${{ matrix.integ-config.backend }}
+      backend_name: ${{ matrix.integ-config.backend_name || '' }}
       timeout_minutes: ${{ matrix.integ-config.timeout_minutes || 35 }}
       retry_count: ${{ matrix.integ-config.retry_count || 3 }}
       yarn_script: ${{ matrix.integ-config.yarn_script || '' }}