test(client): Assign tinylicious real service test ports dynamically

[Josmithr]

Updates the tinylicious real service tests to leverage dynamic port assignment functionality to avoid needing to hard code workspace-globally unique port numbers (in multiple places per relevant package).

This PR updates both test-tools and tinylicious in order to accomplish this. As both of these live in separate release groups from the client, we'll need to publish updates to both libraries before we can actually enable this in client. Those changes have been extracted into separate PRs. This PR exists as an end-to-end example of how everything comes together.

tinylicious PR: #27709
test-tools PR: #27700

[github-actions]

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• API Compatibility — breaking changes, release tags, type design
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• Testing — coverage gaps, hollow tests

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[github-actions]

Bundle size comparison

Base commit: e1dcf16db76b2c217bf3bd9e5de80eabc8e68ce8
Head commit: b0cb6c5a832229de62990de1409298108b7efa3c

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[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

1: starting server using command "npm run serve -- --no-open"
and when url "[ 'http://127.0.0.1:3000' ]" is responding with HTTP status code 200
running tests using command "npm run check-links"


> fluid-framework-website@0.0.0 serve
> docusaurus serve --no-open

[SUCCESS] Serving "build" directory at: http://localhost:3000/

> fluid-framework-website@0.0.0 check-links
> linkcheck http://localhost:3000 --skip-file skipped-urls.txt

Crawling...

Stats:
  298156 links
    1937 destination URLs
    2187 URLs ignored
       0 warnings
       0 errors