Bump middleman from 4.3.4 to 4.4.0

[dependabot[bot]]

Bumps middleman from 4.3.4 to 4.4.0.

Changelog

Sourced from middleman's changelog.

4.4.0

• Ruby 3.0 support.
• ActiveSupport 6.1 (drop support for Ruby 2.4)
• Remove Stylus support
• Support TOML as frontmatter and data.

4.3.11

• Fix URI.unescape deprecation warning (#2312)

4.3.10

• Fix liquid page compilation (#2083)

4.3.9

• Bad build, yanked.

4.3.8

• Update kramdown to avoid CVE-2020-14001 in v4 (#2348)

4.3.7

• Allow ActiveSupport a wider range to avoid security warnings. #2327

4.3.6

• Reset Content-Length header when rewriting (#2316)
• Add Ruby 2.7.0 to CI

4.3.5

• Fix i18n with anchor v4 (#2287)

Commits

• ae9c4bd Prep release
• ad2c090 Activesupport 6.1
• d180ca3 Allow users to use Active Support 6.0 (#2462)
• 0c950d8 Allow users to use Rack 2.2+ (#2460)
• 00ae2d9 Bump backports gemfile
• 9b90979 4.x support for 3.0 (#2424)
• 000fac8 Travis -> Actions (#2427)
• 3ef06c0 Fix toml parsing copy pasta
• 50811db Support TOML as a frontmatter or data format (#2405)
• ffde2fe Replace URI.escape with WEBrick::HTTPUtils.escape (#2383)
• Additional commits viewable in compare view

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[dependabot[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

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