Adopt standard repo management tools

[pp-mo]

TEMPORARY Quick list

• repo review
  • ruff
  • mypy
  • doctests
    • runner Pytestless doctests 2 #196
  • dependabot -- but, is this already there ?
• TEMPLATES
  • template alignment / (standardise gha's)
  • pre-commit
    • ruff
    • numpydoc
    • MANIFEST
    • CITATION
    • pyproject.toml
• build automation
  • wheels [build check]
  • automatic release builds
• adopt lockfiles
• license warning fix
• ditch the usage of iris.tests (believe only used for access to iris-test-data)

NOTE:

current idea is to (progressively?) replace both scitools/workflows and composites with templating