fix(step): custom icon not vertically centered error

[ZinkWu]

…t the default size of Steps

中文版模板 / Chinese template

🤔 This is a ...

• [ ] New feature
• [ ] Bug fix
• [ ] Site / documentation update
• [ ] Demo update
• [x] Component style update
• [ ] TypeScript definition update
• [ ] Bundle size optimization
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🔗 Related issue link

fix #48641

💡 Background and solution

📝 Changelog

Language	Changelog
🇺🇸 English	Fix <Step /> custom icon not vertically centered errorr
🇨🇳 Chinese	修复 <Steps /> 自定义图标未垂直居中问题

☑️ Self-Check before Merge

⚠️ Please check all items below before requesting a reviewing. ⚠️

• [x] Doc is updated/provided or not needed
• [x] Demo is updated/provided or not needed
• [x] TypeScript definition is updated/provided or not needed
• [x] Changelog is provided or not needed

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[github-actions[bot]]

[github-actions[bot]]

👁 Visual Regression Report for PR #48650 Failed ❌

🎯 Target branch: master (bf330cbedbdc995e045953a3c13fa14915e8594b) 📖 View Full Report ↗︎

Expected (Branch master)	Actual (Current PR)	Diff
steps-component-token.compact.png	steps-component-token.compact.png
steps-component-token.compact.png	steps-component-token.compact.css-var.png
steps-component-token.dark.png	steps-component-token.dark.png
steps-component-token.dark.png	steps-component-token.dark.css-var.png
steps-component-token.default.png	steps-component-token.default.png
steps-component-token.default.png	steps-component-token.default.css-var.png

Check Full Report for details

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To see build info of the built libraries, click here or the icon next to each commit SHA.

[Wxh16144]

标题太长了点.

pr 描述用 fix #48641 关联一下

另外 commitmsg 里面加一个

Co-authored-by: nova1751 <nova1751@users.noreply.github.com>

[ZinkWu]

标题太长了点.

pr 描述用 fix #48641 关联一下

另外 commitmsg 里面加一个

Co-authored-by: nova1751 <nova1751@users.noreply.github.com>

这里需要先 revert 之前的 commit 重新提交还是直接push一个新的commit呢？

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (9d4a532) to head (5469823). Report is 3 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #48650 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 745 745 Lines 12946 12946 Branches 3382 3382 ========================================= Hits 12946 12946 ```

:umbrella: View full report in Codecov by Sentry.
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