Bump middleman from 4.2.0 to 4.3.11

[dependabot[bot]]

Bumps middleman from 4.2.0 to 4.3.11.

Changelog

Sourced from middleman's changelog.

4.3.11 (2020-09-16)

• Fix: rack.rb:89: warning: URI.unescape is obsolete (#2312)

4.3.10 (2020-09-11)

• Bump version

4.3.9 (2020-09-10)

• Fix: build error using liquid (#2083)

4.3.8 (2020-08-13)

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

4.3.7 (2020-05-28)

• Loosen activesupport dependence (#2327)

  What

  Change the maximum version of activesupport required to be any 5.x version, bringing the dependency back inline prior to it being restricted in commit ea2115f3f87d6e881fe9517dc65735c96735faf3.

  Why

  There is a vulnerability reported in activesupport that is fixed in version 5.2.4.3, which middleman-core does not allow to be used due to its < 5.1 version requirement.

  Prior to commit ea2115f3f87d6e881fe9517dc65735c96735faf3 any 5.x version was allowed because the dependency was defined as ~> 5.0, however in that commit that intended to loosen the minimum dependency it appears the maximum dependency was tightened. There is no explanation in the commit or its related PR (#1976) about this so it could have been an accident.

• Add empty image alt tag if alt text not specified (#2323)

  Middleman's image_tag helper wraps the Padrino image_tag helper. By default, the Padrino image_tag helper adds an alt tag based on the image filename when one isn't explicitly set.

  Alt text based on the filename is not helpful to users and therefore bad for accessibility.

  To avoid this, explicitly set an empty alt tag value before calling Padrino's image_tag if the user hasn't specified a value.

4.3.6 (2020-02-21)

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

4.3.5 (2019-08-10)

• Fix i18n with anchor v4 (#2287)

... (truncated)

Commits

• 0141f24 Missing gemspec
• 620ba3d Prep
• 7c155c2 Fix #2312
• 5340641 Bump version
• e0fc30b Prep 4.3.9
• ff640a9 Fix #2083
• 949f2de Update changelog
• 397371e Prep release
• c147fcd Update kramdown to avoid CVE-2020-14001 in v4 (#2348)
• f1ee616 Bump
• Additional commits viewable in compare view

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