Update Klaviyo V3 API revision to 2025-10-15

[smoucka]

Summary

Updates the Klaviyo V3 API revision header from 2025-04-15 to 2025-10-15.

Related to: ECOS-15290

Changes Made

• Updated KLAVIYO_V3_REVISION constant in KlaviyoV3Sdk/KlaviyoV3Api.php to 2025-10-15
• Updated API documentation URLs to reference v2025-10-15
• Bumped extension version from 4.4.1 to 4.4.2 using changelogger

Test Plan

Based on the scope of work from ECOS-15290:

• Ensure Playwright test site is using the latest available version of the extension (Playwright test site creds can be found in 1Password, search "playwright")
• Run playwright tests against latest version
• Update revision in code
• Generate extension assets
• Install updated extension on Playwright test site
• Run playwright tests against updated revisions
• Verify no issues arise due to revision changes

Resources

• M2 Playwright test documentation
• Klaviyo API revision changelog
• Extension API matrix

🤖 Generated with Claude Code

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Note

Updates Klaviyo V3 API revision to 2025-10-15 and bumps extension version to 4.4.2 with corresponding changelog and metadata updates.

• Backend SDK:
  • Update KLAVIYO_V3_REVISION to 2025-10-15 and refresh API doc URLs in KlaviyoV3Sdk/KlaviyoV3Api.php.
• Release/Versioning:
  • Bump version to 4.4.2 in composer.json, composer.dev.json, composer.magento-coding-standard.dev.json, and etc/module.xml.
  • Update CHANGELOG.md with 4.4.2 entry and links.

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