fix: deprecation warnings & github runners node/php versions

[nicholasio]

Description of the Change

Closes #628 #613 #624

How to test the Change

Changelog Entry

Added - New feature
Changed - Existing functionality
Deprecated - Soon-to-be removed feature
Removed - Feature
Fixed - Bug fix
Security - Vulnerability

Credits

Props @claytoncollie @colinswinney

Checklist:

• I agree to follow this project's Code of Conduct.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests pass.

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🦋 Changeset detected

Latest commit: 090d57e

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

This PR includes changesets to release 1 package

Name	Type
@headstartwp/headstartwp	Patch

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Name	Status	Preview	Comments	Updated (UTC)
headstarwp	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 9, 2023 3:13pm

[github-actions]

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[github-actions]

📦 Next.js Bundle Analysis for @10up/headless_framework

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌

[github-actions]

📦 Next.js Bundle Analysis for @10up/headless_framework

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌

[github-actions]

📦 Next.js Bundle Analysis for @10up/headless_framework

This analysis was generated by the Next.js Bundle Analysis action. 🤖

This PR introduced no changes to the JavaScript bundle! 🙌