feat: add email/smtp plain auth method #12983

Job	Run time
Setup PHP Version for Code Coverage	1s
Others (8.1) / Sanity Tests	2m 31s
Others (8.3) / Sanity Tests	2m 53s
Others (8.4) / Sanity Tests	2m 44s
Others (8.2) / Sanity Tests	3m 56s
CacheLive (8.1) / Cache Live Tests	1m 59s
CacheLive (8.2) / Cache Live Tests	2m 22s
CacheLive (8.3) / Cache Live Tests	2m 1s
CacheLive (8.4) / Cache Live Tests	2m 11s
SeparateProcess (8.1) / tests	3m 40s
SeparateProcess (8.2) / tests	3m 53s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 24s
DatabaseLive (8.1, MySQLi, 8.0) / tests	4m 54s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 28s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 51s
SeparateProcess (8.3) / tests	3m 39s
SeparateProcess (8.4) / tests	3m 23s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 48s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 0s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 28s
DatabaseLive (8.2, OCI8, 8.0) / tests	6m 47s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 28s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 19s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 26s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 59s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 23s
DatabaseLive (8.3, Postgre, 8.0) / tests	3m 11s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 36s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	4m 45s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 25s
DatabaseLive (8.4, OCI8, 8.0) / tests	5m 50s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 33s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 43s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	4m 7s
Upload coverage results to Coveralls / coveralls	1m 2s
	2h 6m 40s

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