Run composer install when releasing so PHPUnit is available
This resolves an error that occurred when running the release Phing target:
sh: /Users/ahoffmann/IdeaProjects/cbs-techstore-client-php/target/vendor/bin/phpunit: No such file or directory
At 10PM on Tuesday, 3/4/25, GitLab will be patched to version 17.8.4: https://outages.doit.wisc.edu/outage/94b93a4e9afac6453b4ca146bbb5a427c6856c676f
This resolves an error that occurred when running the release Phing target:
sh: /Users/ahoffmann/IdeaProjects/cbs-techstore-client-php/target/vendor/bin/phpunit: No such file or directory