Add style mixins to lifecycle imports rule

[connor-baer]

Purpose

The style mixins were also moved to the @sumup/circuit-ui/legacy entry point.

Approach and changes

• Added the style mixins to the component-lifecycle-imports ESLint rule

Definition of done

• Development completed
• Reviewers assigned
• Unit and integration tests
• Meets minimum browser support
• Meets accessibility requirements

[changeset-bot]

🦋 Changeset detected

Latest commit: b62bf10

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sumup/eslint-plugin-circuit-ui	Minor

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Name	Status	Preview	Updated (UTC)
oss-circuit-ui	✅ Ready (Inspect)	Visit Preview	Jul 21, 2023 6:58pm

[codecov]

Codecov Report

Merging #2194 (b62bf10) into next (b5b0df1) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             next    #2194   +/-   ##
=======================================
  Coverage   96.56%   96.56%           
=======================================
  Files         259      259           
  Lines       20523    20535   +12     
  Branches     1928     1928           
=======================================
+ Hits        19818    19830   +12     
  Misses        702      702           
  Partials        3        3           

Impacted Files	Coverage Δ
...in-circuit-ui/component-lifecycle-imports/index.ts	100.00% <100.00%> (ø)