Fix typo: occured → occurred in prompter.ts [fixes #8783]

[ErnestHysa]

Fixes aws-toolkit-vscode #8783 - typo in JSDoc comment.

Change: occured → occurred in packages/core/src/shared/ui/prompter.ts (line 26)

Why no tests: This change is limited to a JSDoc string on the totalSteps getter. No runtime behavior is affected, so there is no test surface to cover. (A pre-commit grep would fail on the misspelled word, which is the appropriate guard for this class of change.)

[amazon-inspector-ohio]

⏳ I'm reviewing this pull request for security vulnerabilities and code quality issues. I'll provide an update when I'm done

[github-actions]

• This pull request modifies code in src/* but no tests were added/updated.
  • Confirm whether tests should be added or ensure the PR description explains why tests are not required.

[amazon-inspector-ohio]

✅ I finished the code review, and didn't find any security or code quality issues.

[ErnestHysa]

@github-actions Clarified in the PR body — this is a one-word JSDoc typo fix on the totalSteps getter, no runtime behavior changes, so there's no test surface. No code push required.