[PowerToys > Run] Calculator plugin: Add randi(x) to function table

[htcfreek]

Updates the function table of calculator plugin in PT Run with the new mathematic function randi(x).

Important

• Do not merge before the feature PR is merged: [PT Run > Calculator] Update mages to v3.0.0 and support for randi(n) microsoft/PowerToys#36560
• Do not merge before an approval of the core maintainers (@crutkas, @jaimecbernardo , @ethanfangg).
• Do not merge before the related PowerToys version is released.

[prmerger-automator]

@htcfreek : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[learn-build-service-prod]

Learn Build status updates of commit 6e0e9f4:

✅ Validation status: passed

File	Status	Preview URL	Details
hub/powertoys/run.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit dbb6525:

✅ Validation status: passed

File	Status	Preview URL	Details
hub/powertoys/run.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[htcfreek]

@alvinashcraft
PT version is released

[alvinashcraft]

This PR must have slipped by me over the holidays. Looks good. Thanks!