Phala Runtime Upgrade v1250 (2nd try) - motion #64

This is a retry of Motion 63, which didn't get enough votes in time.

Original proposal

This motion will trigger the runtime upgrade for Phala Network Runtime v1250 with the following major updates:

• Enable Sygma bridge pallets for configuration
• Upstream update to Substrate v0.9.42 and node client stability improvements

For details, please check the release page