test: update SQL script tests to allow zero for timeouts

Author: olavloite

documentation/connection_properties.md

@@ -28,7 +28,7 @@ The 'Context' value indicates whether the property can only be set when a connec
 | dialect | Sets the dialect to use for new databases that are created by this connection. | GOOGLE_STANDARD_SQL | GOOGLE_STANDARD_SQL, POSTGRESQL | STARTUP |
 | directed_read | The directed read options to apply to read-only transactions. |  |  | USER |
 | enableapitracing | Add OpenTelemetry traces for each individual RPC call. Enable this to get a detailed view of each RPC that is being executed by your application, or if you want to debug potential latency problems caused by RPCs that are being retried. |  | true, false | STARTUP |
-| enabledirectaccess | Configure the connection to try to connect to Spanner using DirectPath (true/false). The client will try to connect to Spanner using a direct Google network connection. DirectPath will work only if the client is trying to establish a connection from a Google Cloud VM. Otherwise it will automatically fallback to the standard network path. NOTE: The default for this property is currently false, but this could be changed in the future. | false | true, false | STARTUP |
+| enabledirectaccess | Configure the connection to try to connect to Spanner using DirectPath (true/false). The client will try to connect to Spanner using a direct Google network connection. DirectPath will work only if the client is trying to establish a connection from a Google Cloud VM. Otherwise it will automatically fallback to the standard network path. NOTE: The default for this property is currently false, but this could be changed in the future. |  | true, false | STARTUP |
 | enableendtoendtracing | Enable end-to-end tracing (true/false) to generate traces for both the time that is spent in the client, as well as time that is spent in the Spanner server. Server side traces can only go to Google Cloud Trace, so to see end to end traces, the application should configure an exporter that exports the traces to Google Cloud Trace. | false | true, false | STARTUP |
 | enableextendedtracing | Include the SQL string in the OpenTelemetry traces that are generated by this connection. The SQL string is added as the standard OpenTelemetry attribute 'db.statement'. |  | true, false | STARTUP |
 | encodedcredentials | Base64-encoded credentials to use for this connection. If neither this property or a credentials location are set, the connection will use the default Google Cloud credentials for the runtime environment. |  |  | STARTUP |