Bump ansi2html from 1.7.0 to 1.8.0

Bumps ansi2html from 1.7.0 to 1.8.0.

Release notes

Sourced from ansi2html's releases.

1.8.0

Minor Changes

• style.py: Drop unused CSS class .bold (#161) @​hartwork
• Bring back putting a rendered man page into release archives (fixes #124) (#173) @​hartwork
• Migrate from mock to unittest.mock of Python >=3.3 (fixes #169) (#171) @​hartwork

Bugfixes

• Fix for ANSI color codes that include blank values (#178) @​jaysonlarose
• Added py.typed file (#176) @​abrahammurciano
• style.py: Get CSS class .inv_foreground in sync with .body_foreground (#160) @​hartwork
• Fix --input-encoding= regression added in PR #143 + related tests (alternative to PR #162) (#172) @​hartwork
• Add ability to also recognize colons in ANSI escapes (#167) @​jaysonlarose
• Fixes to respect bright colors in palette (#126) @​echuber2
• CHANGELOG.rst: Fix misleading 1.6.0 entry and missing 1.7.0 entries (#159) @​hartwork

Kudos goes to: @​abrahammurciano, @​echuber2, @​hartwork, @​jaysonlarose, @​pre-commit-ci and @​pre-commit-ci[bot]

Commits

• b4224cd Fix for ANSI color codes that include blank values (#178)
• 62d113b style.py: Drop unused CSS class .bold (#161)
• e4cd422 Added py.typed file (#176)
• 860a6c1 chore: pre-commit autoupdate
• ed5592c chore: pre-commit autoupdate
• 469e904 pylint: Address warning W1404
• 4b03691 pylint: Address error E0012
• 60ac47a Makefile: Drop obsolete Makefile (that centered around gone file setup.py)
• 7311e8a tox: Bring back putting a rendered man page into release archives
• 6eef91d ci: Install non-PyPI Asciidoc dependencies for man page rendering
• Additional commits viewable in compare view

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