HyperPyYAML toolkit CI

Workflow runs for HyperPyYAML toolkit CI

• Update version to 1.2.3 for release

  completed successfully:
  HyperPyYAML toolkit CI#37:Commit5be4198pushedbypplantinga
  main

  Jan 1, 202616s
  More actions for workflow run 37

• Merge pull request #31 from Foxerine/main

  completed successfully:
  HyperPyYAML toolkit CI#36:Commite11b6b2pushedbypplantinga
  main

  Jan 1, 202617s
  More actions for workflow run 36

• Merge pull request #32 from OscarFree/fix/ruamel-yaml-019-compat

  completed successfully:
  HyperPyYAML toolkit CI#35:Commit8387005pushedbypplantinga
  main

  Jan 1, 202617s
  More actions for workflow run 35

• Pin ruamel.yaml<0.19.0 for compatibility

  completed successfully:
  HyperPyYAML toolkit CI#34:Pull request#32openedbyOscarFree
  OscarFree:fix/ruamel-yaml-019-compat

  Jan 1, 202614s
  More actions for workflow run 34