WP version bump and e2e fixes

[ankitguptaindia]

All Submissions:

• Have you written new tests for your changes, as applicable?
• Have you successfully run tests with your changes locally?
• Will this change require new documentation or changes to existing documentation?

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Changes proposed in this Pull Request:

• Bump WordPress Tested up to version 6.6 to 6.7

Closes #467

Steps to test the changes in this Pull Request:

1. Run the e2e test using GitHub action to test this PR.
2. All tests should be passed.

Changelog entry

Dev - Bump WordPress "tested up to" version 6.7.

[ankitguptaindia]

@iamdharmesh I have updated the locater but still facing some test failures. Could you please check once and suggest what needs to be updated? thanks

[iamdharmesh]

@ankitguptaindia This fixed now and ready for the next steps. Thanks.