jrnl 4.2

See https://github.com/jrnl-org/jrnl/releases/tag/v4.2 for full release notes.

Implemented enhancements:

• Add Python 3.13 support
• Add calendar heatmap display format

Fixed bugs:

• contains doesn’t accept multiple search terms, doesn't work with -and
• Tests failing on develop branch starting with pytest-bdd 7.1.2
• Ignore color when used in a pipeline
• Fix -contains to allow multiple terms with "OR" logic unless -and is added