Bump credo from 1.4.0 to 1.5.6 in /installer

[dependabot-preview]

Bumps credo from 1.4.0 to 1.5.6.

Changelog

Sourced from credo's changelog.

1.5.6

• Ensure compatibility with Elixir 1.12

1.5.5

• Fix bug where compilation warnings are shown if compilation directory is not part of a Git work tree
• Fix bug in mix credo diff where too many issues are reported because

1.5.4

• Fix bug where :exit_status was not a valid option for use Credo.Check
• Fix bug where mix credo diff exited with a non-zero exit status even if no issues were shown
• mix credo diff now fails with an error if the given ref was not found

1.5.3

• Fix bug in diff and version command when git is not installed

1.5.2

• Fix output bug in diff command
• Fix bug in diff command when run on a Git ref that does not contain a given --config-name
• Fix bug in all commands when a given --config-name is not found
• Fix false positive in Credo.Check.Warning.ExpensiveEmptyEnumCheck
• Fix false positive in Credo.Check.Refactor.PipeChainStart regarding custom operators
• Fix --version to include pre version and build info for unpublished versions (e.g. when the dep is included via path: or github:)

1.5.1

• Fix bug in diff command when run on a subdirectory of a Git repository
• Fix bug in new general param :files when excluding files

1.5.0

• Credo now requires Elixir 1.7 or newer

• Refactor check runner (much faster now for common scenarios)

• Add param allow_acronyms to check Credo.Check.Readability.FunctionNames

• Add name of check to message when printing issues with --verbose

• Add support for "dynamic" tagging for checks via .credo.exs

  # Overwrite all tags for `FooCheck`
  {FooCheck, [tags: [:my_tag]]}
  Add tags for FooCheck
  {SomeCredoCheck, [tags: [:initial, :my_tag]]}
  

  Tags can then be used as usual, via the CLI switch --checks-with[out]-tag:

  # Only run checks tagged `:my_tag` during analysis
  

... (truncated)

Commits

• 9bee6e0 Bump version to 1.5.6
• 62b12d2 Update CHANGELOG
• 01578e4 Fix tests for Elixir versions < 1.12
• 30fab35 Update CI to use erlef/setup-beam
• be5c628 Fix interpolation helper for Elixir 1.12
• bd56b12 Fix space around operators check
• 4cceec0 Use Elixir 1.12.0-rc.0
• 3647750 Bump version to 1.5.5
• 6d9aeb5 Update CHANGELOG
• 404886a Check if cwd is a Git directory when compiling
• Additional commits viewable in compare view

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