openstack_cli-v0.4.0

Added

• Add LoadBalancer
• regenerate code with latest generator changes
• (volume) cover block-storage backup
• (network) add network address_{group,scope} resources

Other

• (deps) bump tempfile from 3.10.0 to 3.10.1
• drop serde_yaml dependency
• Merge pull request #113 from gtema/deps
• update http/reqwest/hyper lib