feat: add `Model::firstOrInsert()` with failure handling (#10012) #14462

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.5) / Sanity Tests	2m 23s
Others (8.3) / Sanity Tests	2m 32s
Others (8.4) / Sanity Tests	2m 30s
Others (8.2) / Sanity Tests	4m 25s
CacheLive (8.5) / Cache Live Tests	2m 10s
CacheLive (8.2) / Cache Live Tests	2m 22s
CacheLive (8.4) / Cache Live Tests	2m 7s
CacheLive (8.3) / Cache Live Tests	2m 17s
SeparateProcess (8.5) / tests	3m 11s
SeparateProcess (8.2) / tests	3m 26s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 20s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 47s
SeparateProcess (8.3) / tests	3m 27s
SeparateProcess (8.4) / tests	3m 32s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 26s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	6m 16s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 7s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 55s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 48s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 58s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 32s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 46s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 38s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 22s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 40s
DatabaseLive (8.2, MySQLi, 5.7) / tests	4m 40s
DatabaseLive (8.5, MySQLi, 8.0) / tests	4m 2s
DatabaseLive (8.3, MySQLi, 8.0) / tests	5m 2s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 55s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 27s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 40s
DatabaseLive (8.2, MySQLi, 8.0) / tests	6m 8s
DatabaseLive (8.5, Postgre, 8.0) / tests	2m 57s
Upload coverage results to Coveralls / coveralls	48s
	2h 15m 38s

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