Bump actions/upload-artifact from 6 to 7 in the actions group #115

Job	Run time
PHPCS (PHP 8.3)	21s
WP Plugin Check (PHP 8.3)	1m 46s
PHPMD (PHP 8.3)	16s
Psalm Static Analysis (PHP 8.3)	22s
Security Scan (PHP 8.3)	17s
WP VIP CS (PHP 8.3)	24s
PHPStan for WP (PHP 8.3)	24s
Test WordPress nightly with PHP 8.0	1m 6s
Test WordPress latest with PHP 8.4	1m 5s
Test WordPress latest with PHP 8.3	1m 5s
Test WordPress nightly with PHP 7.4	1m 13s
Test WordPress latest with PHP 8.0	1m 10s
Test WordPress nightly with PHP 8.4	1m 1s
Test WordPress 6.5 with PHP 7.4	59s
Test WordPress 6.5 with PHP 8.3	1m 2s
Test WordPress latest with PHP 7.4	1m 5s
Test WordPress 6.5 with PHP 8.0	1m 2s
Test WordPress 6.5 with PHP 8.4	1m 6s
Test WordPress nightly with PHP 8.3	1m 8s
	16m 52s

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