feat: Include the PHAR timestamp in the PHAR diff #877

Job	Run time
AutoReview Tests	11s
Lint CS	19s
Unit Tests (PHP 8.1, locked)	30s
Update the RequirementChecker	0s
Unit Tests (PHP 8.1, lowest)	32s
Wait for the PHAR & Docker images	7m 8s
Unit Tests (PHP 8.1, highest)	23s
Unit Tests (PHP 8.2, highest)	32s
Unit Tests (PHP 8.3, highest, --ignore-platform-req=php+)	38s
End-to-End Tests (_test_e2e_pass_no_config_min_composer_php, ghcr.io/box-project/box_php725)	35s
End-to-End Tests (_test_e2e_pass_no_config_min_box_php, ghcr.io/box-project/box_php81)	27s
End-to-End Tests (_test_e2e_pass_complete_min_composer_php, ghcr.io/box-project/box_php725)	39s
End-to-End Tests (_test_e2e_pass_complete_min_box_php, ghcr.io/box-project/box_php81)	23s
End-to-End Tests (_test_e2e_fail_complete_min_composer_php, ghcr.io/box-project/box_php725)	23s
End-to-End Tests (_test_e2e_fail_complete_min_box_php, ghcr.io/box-project/box_php81)	21s
End-to-End Tests (_test_e2e_skip_min_composer_php, ghcr.io/box-project/box_php725)	22s
End-to-End Tests (_test_e2e_pass_complete_requirement_checker_not_disabled, ghcr.io/box-project/b...	34s
End-to-End Tests (_test_e2e_fail_conflict, ghcr.io/box-project/box_php81)	37s
RequirementChecker status	1s
	14m 35s

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