Update Google API client services library to get latest AdSense API updates support

[felixarntz]

In order for #5050 (and potentially other AdSense-related features) to work, based on the latest AdSense API enhancements, we need to update the google/apiclient-services PHP library to at least version 0.242.0 (latest at this point is 0.243.0).

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Acceptance criteria

• The google/apiclient-services PHP library needs to be updated to a version greater than or equal to 0.242.0.

Implementation Brief

• Change google/apiclient-services definition in composer.json to 0.243.0.
• Merge Update google/apiclient-services to 0.243.0 for latest AdSense enhancements #5094.

Test Coverage

• N/A

QA Brief

This needs mostly a sanity check that no module-related request unexpectedly throws an error due to the library update.

• Set up Site Kit.
• Go through the setup flows for the following modules:
  • AdSense (tester plugin to mock states is okay)
  • Analytics
• Check the main dashboard and entity dashboard and verify there are no unexpected errors.

Changelog entry

• Update Google API client services library for latest AdSense API enhancements.

[felixarntz]

@aaemnnosttv This is ready for IBR / CR :)

[aaemnnosttv]

IB + CR ✅ 🚀

[wpdarren]

QA Update: ✅

Verified:

• Went through the setup flows for AdSense and Analytics.
• Checked the main dashboard and entity dashboard and verify there are no unexpected errors.
• Tested this with ZDS enabled and disabled.
• Tested this with a new Analytics property and also selecting an already created property.
• No console errors or any on-screen errors.