Fix CI: Go version and script permissions

- Change Go version from 1.24.6 to 1.22.8 (stable version)
- Ensure all build scripts have executable permissions
- Fix covdata issue by using stable Go version
- CI should now pass all checks

node/node.go

@@ -28,8 +28,8 @@
 package node
 
 import (
-	"github.com/luxfi/geth/accounts"
 	"github.com/luxfi/evm/rpc"
+	"github.com/luxfi/geth/accounts"
 )
 
 // Node is a container on which services can be registered.