Replace Fathom custom domain with default URL

[mwickett]

• update fathom script domain
• version package

🎟️ Asana Task

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Description

Fathom has had upstream issues with their custom domain provider failing to renew SSL certificates, and have advised us that we should switch to their default CDN URL cdn.usefathom.com/script.js

This PR replaces our custom tarantula.hashicorp.com url with Fathom's default

PR Checklist 🚀

• Conduct thorough self-review.
• Add or update tests as appropriate.
• Write a useful description (above) to give reviewers appropriate context.
• Identify (in the description above) and document (add Asana tasks on this board) any technical debt that you're aware of, but are not addressing as part of this PR.

[changeset-bot]

🦋 Changeset detected

Latest commit: c00a611

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hashicorp/platform-analytics	Minor

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[brkalow]

lgtm