Release 24.1.2

• test: Don't assume ordering of ThreadPoolExecutor submissions (#5052)
• refactor(ec2): simplify convert_ec2_metadata_network_config
• tests: drop CiTestCase and convert to pytest
• bug(tests): mock reads of host's /sys/class/net via get_sys_class_path
• fix: Fix breaking changes in package install (#5069)
• fix: Undeprecate 'network' in schema route definition (#5072)
• fix(ec2): fix ipv6 policy routing
• fix: document and add 'accept-ra' to network schema (#5060)
• bug(maas): register the correct DatasourceMAASLocal in init-local
  (#5068) (LP: #2057763)