devel/py-flynt: Update to 1.0.3
Does not support python < 3.9.
Only depend on py-tomli for python < 3.11.
Changes since 1.0.1:
- Switch to ast.unparse for source generation
- Fix backslash handling in format conversion
- Better explanation of int tests
- Add AGENTS developer guide
- Add support for flynt skip comment
- Igore warnings from astor
- Fix ast.Str deprecation
- Handle nonliteral format strings
- Add verbosity levels arguments
- Add missing ruff to dev deps
- Fix char count reduction bug
Reported by: portscout