Docs: Add missing `@var` tag for `WP_Query::$query_vars_changed`. #34

Job	Run time
Build Test Matrix	0s
WP ${{ inputs.wp-version \|\| 'nightly' }} / PHP ${{ matrix.php }} / ${{ ((('mariadb' == matrix.db-type) && 'MariaDB') \|\| 'MySQL') }} ${{ matrix.db-version }}${{ ((matrix.multisite && ' multisite') \|\| '') }}	0s
Slack Notifications	0s
Failed workflow tasks	0s
	0s

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