fix(PendingIcon): Replace PendingIcon with RhUiPendingIcon

[rebeccaalpert]

What:
This is one piece of #12400. Breaking it up by icon so it is easier to review.

Additional issues:

Summary by CodeRabbit

• Documentation
  • Updated ProgressStepper component examples with revised icon implementations.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 5ff5a22c-5be9-49b1-bdd0-7cefba576abf

📥 Commits

Reviewing files that changed from the base of the PR and between 8b528bb and 218c11e.

📒 Files selected for processing (2)

• packages/react-core/src/components/ProgressStepper/examples/ProgressStepper.md
• packages/react-core/src/components/ProgressStepper/examples/ProgressStepperCustomIcons.tsx

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Walkthrough

The ProgressStepper example files are updated to replace the pending icon import and usage with RhUiPendingIcon. Both the Markdown documentation and TypeScript component example are updated to reflect the new icon reference.

Changes

ProgressStepper pending icon examples

Layer / File(s)	Summary
Update pending icon references in examples packages/react-core/src/components/ProgressStepper/examples/ProgressStepper.md, packages/react-core/src/components/ProgressStepper/examples/ProgressStepperCustomIcons.tsx	Icon import statements and icon prop rendering are updated from PendingIcon to RhUiPendingIcon in both the Markdown documentation example and the custom icons component example.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested labels

Needs design review

Suggested reviewers

• nicolethoen
• kmcfaul
• thatblindgeye

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: replacing PendingIcon with RhUiPendingIcon, which is reflected in both modified files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[patternfly-build]

Preview: https://pf-react-pr-12459.surge.sh

A11y report: https://pf-react-pr-12459-a11y.surge.sh