feat: Add `isAvailable()` method to AbstractCommand #15177

Job	Run time
Setup PHP Version for Code Coverage	3s
Others (8.5) / Sanity Tests	1m 48s
Others (8.3) / Sanity Tests	2m 0s
Others (8.4) / Sanity Tests	1m 30s
Others (8.2) / Sanity Tests	3m 27s
SeparateProcess (8.4) / tests	2m 47s
SeparateProcess (8.2) / tests	2m 20s
SeparateProcess (8.3) / tests	2m 0s
SeparateProcess (8.5) / tests	2m 2s
CacheLive (8.2) / Cache Live Tests	1m 45s
CacheLive (8.5) / Cache Live Tests	1m 39s
DatabaseLive (8.5, MySQLi, 8.0) / tests	4m 2s
CacheLive (8.4) / Cache Live Tests	1m 28s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 54s
CacheLive (8.3) / Cache Live Tests	1m 33s
DatabaseLive (8.4, Postgre, 8.0) / tests	1m 36s
DatabaseLive (8.3, SQLite3, 8.0) / tests	1m 12s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 39s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 22s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	5m 28s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 40s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 48s
DatabaseLive (8.2, OCI8, 8.0) / tests	8m 42s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 53s
DatabaseLive (8.5, OCI8, 8.0) / tests	8m 7s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 7s
DatabaseLive (8.3, Postgre, 8.0) / tests	1m 47s
DatabaseLive (8.3, MySQLi, 8.0) / tests	3m 21s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 27s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 35s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 50s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 28s
DatabaseLive (8.4, SQLite3, 8.0) / tests	1m 11s
DatabaseLive (8.2, Postgre, 8.0) / tests	2m 38s
Upload coverage results to Coveralls / coveralls	45s
	1h 54m 54s

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