Update html2text requirement from 0.6.0 to 0.9.4

[dependabot]

Updates the requirements on html2text to permit the latest version.

Changelog

Sourced from html2text's changelog.

0.9.4

• [changed] Updated the termion dev-dependency to 2.0.

0.9.3

• [changed] Added cargo categories and update to 2021 edition.

0.9.2

• [fixed] CSS didn't work inside <ul> or <ol>.
• [added] Add methods to get and use the intermediate HTML DOM and RenderTree from Config.
• [fixed] Removed some clones which are no longer necessary now that Box works.

0.9.1

• [fixed] Various documentation issues (thanks sgtatham)
• [changed] CSS color rules now work for elements other than span.

0.9.0

• [changed] Config::add_css now returns Result instead of panicking on CSS parse errors. Errors from parsing document CSS are ignored.
• [added] Support <font color=...> when CSS is enabled.
• [added] Config::max_wrap_width() to wrap text to a norrower width than the overal size available.
• [added] Add --wrap-width and --css options to html2text example.

0.8.0

• [added] CSS: Support more extensive selectors
• [changed] CSS handling defaults to off; use Config::use_doc_css() or Config::add_css to use CSS.

0.7.1

• [added] Now recognised CSS display:none
• [added] Can now add extra CSS rules via Config::add_css.
• [changed] StyleData::coloured is no longer public.

0.7.0

• [changed] Remove some noisy stderr output when encoutering control chars (thanks sftse)
• [added] A builder-based config API.
• [changed] Updated MSRV to 1.60
• [fixed] Fixed #88: panic when a width of zero passed in (thanks bingen13)
• [fixed] Fixed #90: Fixed a divide-by-zero panic with colspan=0 (thanks mtorromeo)

... (truncated)

Commits

• 9c6043b Merge pull request #107 from jugglerchris/update_termion_2
• 503db5c Update for 0.9.4.
• 73aaedf Update to Termion 2.0.
• ff64f45 Merge pull request #106 from jugglerchris/update_edition_2021
• c799021 Update to 0.9.3.
• 9f5e9b4 Update edition to 2021.
• 4a33e74 Add Cargo categories.
• 873f005 Merge pull request #105 from jugglerchris/config_parse_render
• 0a8efeb Add back Eq on Error.
• 8d34abc Fix unquoted HTML tags in doc comments.
• Additional commits viewable in compare view

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[dependabot]

Superseded by #137.