Update upward.yml to use the new upward-connector resolver for URL Re…

[del15881]

…solving

Description

Updates in upward.yml file to use the newly introduced InternalService resolver in the magento2-upward-connector module.

Related Issue

https://jira.corp.adobe.com/browse/PWA-3686

Closes #PWA-3686.

Acceptance

Verification Stakeholders

Specification

Verification Steps

Test scenario(s) for direct fix/feature

Test scenario(s) for any existing impacted features/areas

Test scenario(s) for any Magento Backend Supported Configurations

Is Browser/Device testing needed?

Any ad-hoc/edge case scenarios that need to be considered?

Screenshots / Screen Captures (if appropriate)

Breaking Changes (if any)

Checklist

• I have added tests to cover my changes, if necessary.
• I have added translations for new strings, if necessary.
• I have updated the documentation accordingly, if necessary.

[pwa-studio-bot]

	Messages
📖	Associated JIRA tickets: PWA-3686.
📖	DangerCI Failures related to missing labels/description/linked issues/etc will persist until the next push or next pr-test build run (assuming they are fixed).
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