tests(tracer): update docs url for e2e tests

[dreamorosi]

Description of your changes

This PR changes the url used to make outbound HTTP calls in the integration tests for the Tracer utility. The new url represents the latest homepage for our docs.

Related issues, RFCs

Issue number: closes #1557

Checklist

• My changes meet the tenets criteria
• I have performed a self-review of my own code
• I have commented my code where necessary, particularly in areas that should be flagged with a TODO, or hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my change is effective and works
• The PR title follows the conventional commit semantics

Breaking change checklist

Is it a breaking change?: NO

• I have documented the migration process
• I have added, implemented necessary warnings (if it can live side by side)

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[dreamorosi]

Ran e2e tests, successful: https://github.com/aws-powertools/powertools-lambda-typescript/actions/runs/5391164094