feat: Add `isAvailable()` method to AbstractCommand #15169

Job	Run time
Setup PHP Version for Code Coverage	3s
Others (8.4) / Sanity Tests	1m 32s
Others (8.2) / Sanity Tests	3m 20s
Others (8.5) / Sanity Tests	1m 37s
Others (8.3) / Sanity Tests	1m 42s
SeparateProcess (8.5) / tests	2m 20s
SeparateProcess (8.3) / tests	2m 11s
CacheLive (8.2) / Cache Live Tests	1m 53s
SeparateProcess (8.2) / tests	2m 3s
CacheLive (8.3) / Cache Live Tests	1m 34s
CacheLive (8.4) / Cache Live Tests	1m 40s
SeparateProcess (8.4) / tests	2m 17s
CacheLive (8.5) / Cache Live Tests	1m 39s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 23s
DatabaseLive (8.3, MySQLi, 8.0) / tests	6m 46s
DatabaseLive (8.4, Postgre, 8.0) / tests	1m 39s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 2s
DatabaseLive (8.2, OCI8, 8.0) / tests	8m 40s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 33s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 14s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 6s
DatabaseLive (8.3, Postgre, 8.0) / tests	1m 49s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 39s
DatabaseLive (8.4, SQLite3, 8.0) / tests	1m 12s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 47s
DatabaseLive (8.2, Postgre, 8.0) / tests	2m 59s
DatabaseLive (8.4, MySQLi, 8.0) / tests	8m 26s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 58s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 23s
DatabaseLive (8.3, SQLite3, 8.0) / tests	1m 12s
DatabaseLive (8.5, MySQLi, 8.0) / tests	3m 42s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 11s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	8m 22s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 44s
Upload coverage results to Coveralls / coveralls	49s
	2h 2m 27s

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