Update package.json to include the repository key

[msftenhanceprovenance]

Title:

With the rise in supply chain attacks and OSS dependencies being used as a attack vector, Microsoft is working with our ecosystem partners, such as the Linux Foundation's OpenSSF, to enable OSS consumers to track packages back to their public sources.
We've identified that the following packages published to NPM do not report where sources can be found, typically accomplished by including a link to your GitHub repository in your package.json REPOSITORY field. This PR was created to add this value, ensuring future releases will include this provenance information.
Published NPM packages with repository information:
*selenium-webdriver

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Description / Motivation and Context

With the rise in supply chain attacks and OSS dependencies being used as a attack vector, Microsoft is working with our ecosystem partners, such as the Linux Foundation's OpenSSF, to enable OSS consumers to track packages back to their public sources.
We've identified that the following packages published to NPM do not report where sources can be found, typically accomplished by including a link to your GitHub repository in your package.json REPOSITORY field. This PR was created to add this value, ensuring future releases will include this provenance information.
Published NPM packages with repository information:
*selenium-webdriver

Types of changes

This is not a contributing change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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