Fix splatting in Windows install script in contributing guide

[blakeNaccarato]

Description

Motivation and context

Test plan

Checklist

• [x] My code follows this project's code style.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] My change is adequately tested.

Terms

• [x] My contribution follows the contributing guide.
• [x] I agree to follow the code of conduct.

Summary by Sourcery

This pull request fixes the splatting syntax in the Windows install script in the contributing guide, ensuring the script executes correctly. The contributing guide documentation has been updated accordingly.

• Bug Fixes:
  • Corrected the splatting syntax in the Windows install script within the contributing guide to ensure proper execution.
• Documentation:
  • Updated the contributing guide to reflect the corrected Windows install script.

[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This pull request addresses an issue with the Windows install script in the contributing guide by fixing the splatting syntax. The changes involve modifying the PowerShell command to use a single string for the override parameters instead of an array. Additionally, a changelog entry has been added to document this fix.

File-Level Changes

Files	Changes
template/docs/contributing.md.jinja changelog/413.change.md	Fixed the splatting issue in the Windows install script and added a corresponding changelog entry.

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