Python 3.11 support

What's Changed

• Use raw directive for tex instead of double escaping by @lochsh in #722
• docs: regenerate Read the Docs by @stanislaw in #724
• requirements: remove <3.0 limitation on jinja2 by @stanislaw in #726
• cli: minor improvement in strictdoc's root path handling by @stanislaw in #727
• export_action: refactoring: no need to pass an extra path argument by @stanislaw in #729
• export_action: refactoring: clean up ExportCommandConfig by @stanislaw in #730
• traceability_index: refactoring: bring in all data from the generators by @stanislaw in #731
• traceability_index: refactoring: split building index and generating docs by @stanislaw in #732
• Code climate: html_generator: remove dead code by @stanislaw in #733
• CI: Fix Python 3.10 and 3.11 issues by @stanislaw in #734
• CI: try 3.11 on macOS and Linux jobs by @stanislaw in #735
• tests/integration: exercise the fix of incremental copying of assets by @stanislaw in #736
• models/document: remove deprecated "NAME:" field by @stanislaw in #737
• traceability_index: annotate variables with numbers for readability by @stanislaw in #738
• traceability_index: remove no longer used code: max depth count by @stanislaw in #739
• CI: remove last job with Python 3.6 by @stanislaw in #743
• tasks: enable installation using PyInstaller by @stanislaw in #744
• docs: update Discord link by @stanislaw in #745
• Bump version to 0.0.27 by @stanislaw in #746

Full Changelog: 0.0.26...0.0.27