Bump actions/upload-artifact from 6 to 7 in the actions group #120

Job	Run time
Security Scan (PHP 8.3)	17s
WP Plugin Check (PHP 8.3)	1m 57s
WP VIP CS (PHP 8.3)	25s
PHPMD (PHP 8.3)	11s
Psalm Static Analysis (PHP 8.3)	23s
PHPStan for WP (PHP 8.3)	16s
Test WordPress 6.5 with PHP 8.0	1m 18s
Test WordPress nightly with PHP 7.4	1m 6s
PHPCS (PHP 8.3)	23s
Test WordPress 6.5 with PHP 7.4	1m 11s
Test WordPress 6.5 with PHP 8.3	1m 2s
Test WordPress latest with PHP 7.4	1m 15s
Test WordPress 6.5 with PHP 8.4	1m 5s
Test WordPress nightly with PHP 8.3	1m 0s
Test WordPress latest with PHP 8.3	59s
Test WordPress nightly with PHP 8.0	1m 5s
Test WordPress latest with PHP 8.0	58s
Test WordPress nightly with PHP 8.4	1m 12s
Test WordPress latest with PHP 8.4	1m 2s
	17m 5s

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