Revert `Package.resolved` back to stable release format.
Revert `Package.resolved` back to stable release format.

https://github.com/apple/swift-driver/commit/c94045879f487c3a3d21d54181d64a898e2cfb4e
included an update to `Package.resolved` using recent ToT SPM format, which we should not use because of risk of breaking external clients here.

apple/swift-driver,apple/swift-driver,apple/swift-driver,apple/swift-driver