Add @phpcsSuppress to `Command::execute` #533

Job	Run time
cs-stan / Coding Standard & Static Analysis	40s
testsuite / testsuite-linux (8.1, mysql, highest, false)	58s
testsuite / testsuite-linux (8.1, pgsql, highest, false)	54s
testsuite / testsuite-linux (8.1, sqlite, lowest, false)	38s
testsuite / testsuite-linux (8.2, mysql, false)	55s
testsuite / testsuite-linux (8.3, sqlite, highest, true, --ignore-platform-reqs)	1m 8s
	5m 13s

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