fix: test env key missing or wrong (#3430)

api/tests/integration_tests/.env.example

@@ -65,9 +65,12 @@ JINA_API_KEY=
 # Ollama Credentials
 OLLAMA_BASE_URL=
 
+# Together API Key
+TOGETHER_API_KEY=
+
 # Mock Switch
 MOCK_SWITCH=false
 
 # CODE EXECUTION CONFIGURATION
 CODE_EXECUTION_ENDPOINT=
-CODE_EXECUTINO_API_KEY=
+CODE_EXECUTION_API_KEY=