Update trunk tests to accommodate for new transient in core #95

Bug Report

• Yes, I reviewed the contribution guidelines.
• Yes, more specifically, I reviewed the guidelines on how to write clear bug reports.

Describe the current, buggy behavior

https://core.trac.wordpress.org/changeset/58025 was merged last week, which added a new transient.

That now causes some tests to fail, see https://github.com/wp-cli/cache-command/actions/runs/8845496490/job/24289764622?pr=89#step:11:88

Describe how other contributors can replicate this bug

Run Behat tests with WP_VERSION=trunk

Describe what you would expect as the correct outcome

Passing tests :)

Let us know what environment you are running this on

Any environment

Provide a possible solution

We could force-delete wp_theme_files_patterns in the tests, or add some new tests specifically targeting 6.6+, and only run the existing ones on <= 6.5. We could also modify the tests a little bit to be less strict (e.g. use "contain" vs "be")

Provide additional context/Screenshots

See link above