Coding Standards: replace isset() ternary with null coalescing #1446

Job	Run time
Build / WordPress	2m 19s
Upgrade from 6.5 / 6.5 to develop / PHP 8.4 with MySQL 8.4	1m 11s
Upgrade from 6.5 / 6.5 to develop / PHP 8.4 with MySQL 5.7 multisite	1m 43s
Upgrade from 4.9 / 4.9 to develop / PHP 7.2 with MySQL 5.7	1m 29s
Upgrade from 6.7 / 6.7 to develop / PHP 8.4 with MySQL 8.4	1m 2s
Upgrade from 6.7 / 6.7 to develop / PHP 8.4 with MySQL 5.7 multisite	1m 1s
Upgrade from 6.5 / 6.5 to develop / PHP 7.2 with MySQL 5.7 multisite	58s
Upgrade from 6.8-RC1 / 6.8-RC1 to develop / PHP 7.2 with MySQL 5.7	1m 28s
Upgrade from 6.8-RC1 / 6.8-RC1 to develop / PHP 8.4 with MySQL 8.4	1m 29s
Upgrade from 6.7 / 6.7 to develop / PHP 8.4 with MySQL 8.4 multisite	1m 30s
Upgrade from 6.7 / 6.7 to develop / PHP 7.2 with MySQL 5.7 multisite	1m 4s
Upgrade from 6.5 / 6.5 to develop / PHP 8.4 with MySQL 5.7	1m 36s
Upgrade from 6.5 / 6.5 to develop / PHP 8.4 with MySQL 8.4 multisite	1m 4s
Upgrade from 6.7 / 6.7 to develop / PHP 8.4 with MySQL 5.7	1m 28s
Upgrade from 6.7 / 6.7 to develop / PHP 7.2 with MySQL 5.7	1m 24s
Upgrade from 6.8-RC1 / 6.8-RC1 to develop / PHP 8.4 with MySQL 5.7	58s
Upgrade from 6.8-RC1 / 6.8-RC1 to develop / PHP 8.4 with MySQL 5.7 multisite	1m 42s
Upgrade from 6.5 / 6.5 to develop / PHP 7.2 with MySQL 5.7	1m 50s
Upgrade from 6.8-RC1 / 6.8-RC1 to develop / PHP 7.2 with MySQL 5.7 multisite	1m 3s
Upgrade from 4.9 / 4.9 to develop / PHP 7.2 with MySQL 5.7 multisite	58s
Upgrade from 6.8-RC1 / 6.8-RC1 to develop / PHP 8.4 with MySQL 8.4 multisite	1m 28s
Failed workflow tasks	0s
Slack Notifications	0s
	28m 45s

Provide feedback