Updated link in "Add-ons store developer policies"

[mikehoffms]

Rendered article sections for review:

• https://review.learn.microsoft.com/en-us/microsoft-edge/extensions-chromium/store-policies/developer-policies?branch=pr-en-us-2789#1102-policies-and-agreements
• https://review.learn.microsoft.com/en-us/microsoft-edge/extensions-chromium/store-policies/developer-policies?branch=pr-en-us-2789#1104-promotions

Before:

• https://learn.microsoft.com/en-us/microsoft-edge/extensions-chromium/store-policies/developer-policies#1102-policies-and-agreements
• https://learn.microsoft.com/en-us/microsoft-edge/extensions-chromium/store-policies/developer-policies#1104-promotions

This PR updates the link text and URL per redirect. Changed link text from:
"Microsoft Creative Acceptance Policy"
to:
"Microsoft Advertising Network policies"

AB#46046284

[learn-build-service-prod]

Learn Build status updates of commit ebdb3c9:

✅ Validation status: passed

File	Status	Preview URL	Details
microsoft-edge/extensions-chromium/store-policies/developer-policies.md	✅Succeeded	View

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 049a2b1:

✅ Validation status: passed

File	Status	Preview URL	Details
microsoft-edge/extensions-chromium/store-policies/developer-policies.md	✅Succeeded	View

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