Bump bootstrap from 4.3.1 to 4.4.1 in /arctic/static/arctic

[dependabot-preview]

Bumps bootstrap from 4.3.1 to 4.4.1.

Release notes

Sourced from bootstrap's releases.

v4.4.1

• Fix Dart Sass compatibility (#29755, #29763)
• Add :disabled for disabled fieldset (#29762)

v4.4.0

Highlights

Here's what you need to know about v4.4.0. Remember that with every minor and major release of Bootstrap, we ship a new URL for our hosted docs to ensure URLs continue to work.- New responsive containers! Over a year in the making, fluid up to a particular breakpoint, available for all responsive tiers.

• New responsive .row-cols classes for quickly specifying the number of columns across breakpoints. This one is huge for those of you who have asked for responsive card decks.
• New escape-svg() function for simplifying our embedded background-image SVGs for forms and more.
• New add() and subtract() functions for avoiding errors and zero values from CSS's built in calc feature.
• New make-col-auto() mixin to make our .col-auto class available with custom HTML.
• Fixed an issue with Microsoft Edge not picking up :disabled styles by moving selectors to [disabled].
• Deprecated: bg-variant(), nav-divider(), and form-control-focus() mixins are now deprecated as they're going away in v5.
• Updated our spacing and alignment for modal footer elements like buttons to automatically wrap when space is constrained.
• More flexible form control validation styles thanks to fewer chained selectors. Also updated the :invalid validation icon to be an alert instead of an × to avoid confusion with browser functionality for clearing the form field value.
• Fixed a couple dozen CSS and JS bugs.
• Moved to GitHub Actions for CI/CD! Expect more updates to our CI setup over time here while Actions evolves.
• Updated documentation to fix links and typos, improved landmarks for secondary navigation, and a new security doc for guidelines on reporting potential vulnerabilities.

Links

• List of closed issues and merged pull requests
• Review the project board

Commits

• dca1ab7 Release v4.4.1.
• b07b6f7 Fix dart Sass compatibility for subtract (#29763)
• 0d148d8 V4: Add :disabled for disabled fieldset (#29762)
• c24aaa6 Fix dart Sass compatibility (#29755)
• 301ee19 Update Gemfile.lock
• 593574d Release v4.4.0 (#29735)
• d61bba5 Backport #29734
• 7aa1722 Update change-version.js (#29736)
• 340009e Update devDependencies and gems.
• bdd8752 Switch to the Coveralls Action (#29478)
• Additional commits viewable in compare view

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[coveralls]

Coverage remained the same at 73.874% when pulling b7dad7e on dependabot/npm_and_yarn/arctic/static/arctic/bootstrap-4.4.1 into 5a35dca on develop.