Bump mini_magick from 3.6.0 to 4.9.4

[dependabot]

Bumps mini_magick from 3.6.0 to 4.9.4.

Release notes

Sourced from mini_magick's releases.

v4.9.4

• Fixed a remote shell execution vulnerability when using MiniMagick::Image.open with URL coming from unsanitized user input (thanks to @​rootxharsh)
• Fixed some Ruby warnings (thanks to @​koic)

v4.9.3

• make MiniMagick::Tool not respond to everything

v4.9.2

• Fix breakage for MRI 2.3 and below

v4.9.1

• Properly handle EXIF parsing with ImageMagick 7
• Show an informative exception message on Timeout::Error
• Wait for the MiniMagick command to terminate after sending SIGTERM with open3

v4.9.0

New features

• Support ImageMagick 7

  • MiniMagick::Tool::Convert will now generate magick convert commands (and the same for others)
  • MiniMagick::Tool::Magick was added for generating magick commands

• MiniMagick.cli_prefix was added to configure a prefix for commands

  MiniMagick.cli_prefix = "firejail"
  
  MiniMagick::Tool::Magick.new { |magick| ... } # executes `firejail magick ...`

Other Improvements

• Fix deadlocks when using posix-spawn as a shell backend

• Fix Errno::ESRCH sometimes being raised when the ImageMagick command would time out

• #label and #caption will now generate regular options

  MiniMagick::Tool::Convert.new do |convert|
                           # BEFORE:       NOW:
    convert.label("foo")   # label:foo    -label foo
    convert.caption("bar") # caption:bar  -caption bar
  end

• Add pango creation operator

... (truncated)

Commits

• 293f9bb Bump to 4.9.4
• 4cd5081 Don't allow remote shell execution
• 152d33a Fix test failure
• 87e9059 Merge pull request #427 from koic/suppress_deprecation_warnings_in_production...
• b5ce047 Suppress warning: instance variable [@​processor](https://github.com/processor)_path not initialized
• a74b73e Suppress warning: instance variable [@​cli](https://github.com/cli)_path not initialized
• 6fca405 Suppress warning: instance variable [@​cli](https://github.com/cli) not initialized
• 64560f5 Suppress warning: method redefined; discarding old debug=
• 563cc61 Suppress warning: method redefined; discarding old cli_path
• 2965e55 Suppress warning: method redefined; discarding old cli and cli=
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot ignore this [patch|minor|major] version will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language

You can disable automated security fix PRs for this repo from the Security Alerts page.