chore: Various minor fixes reported by PHPStorm inspection #706

Job	Run time
AutoReview Tests	12s
Lint CS	26s
Unit Tests (PHP 8.1, locked)	25s
Unit Tests (PHP 8.1, lowest)	31s
Wait for the PHAR & Docker images	6m 5s
Unit Tests (PHP 8.1, highest)	27s
Unit Tests (PHP 8.2, highest)	41s
Unit Tests (PHP 8.3, highest, --ignore-platform-req=php+)	57s
Update the RequirementChecker	0s
End-to-End Tests (_test_e2e_pass_no_config_min_composer_php, ghcr.io/box-project/box_php725)	10s
End-to-End Tests (_test_e2e_pass_no_config_min_box_php, ghcr.io/box-project/box_php81)	9s
End-to-End Tests (_test_e2e_pass_complete_min_composer_php, ghcr.io/box-project/box_php725)	14s
End-to-End Tests (_test_e2e_pass_complete_min_box_php, ghcr.io/box-project/box_php81)	8s
End-to-End Tests (_test_e2e_fail_complete_min_composer_php, ghcr.io/box-project/box_php725)	14s
End-to-End Tests (_test_e2e_fail_complete_min_box_php, ghcr.io/box-project/box_php81)	9s
End-to-End Tests (_test_e2e_skip_min_composer_php, ghcr.io/box-project/box_php725)	7s
End-to-End Tests (_test_e2e_pass_complete_requirement_checker_not_disabled, ghcr.io/box-project/b...	8s
End-to-End Tests (_test_e2e_fail_conflict, ghcr.io/box-project/box_php81)	17s
RequirementChecker status	1s
	11m 21s

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