docs: add changelog and upgrade for v4.7.5 #15730

Job	Run time
Setup PHP Version for Code Coverage	4s
Others (8.2) / Sanity Tests	2m 49s
Others (8.5) / Sanity Tests	2m 9s
Others (8.4) / Sanity Tests	1m 18s
Others (8.3) / Sanity Tests	1m 18s
CacheLive (8.3) / Cache Live Tests	1m 1s
CacheLive (8.4) / Cache Live Tests	1m 7s
CacheLive (8.2) / Cache Live Tests	1m 9s
SeparateProcess (8.4) / tests	2m 2s
CacheLive (8.5) / Cache Live Tests	1m 8s
SeparateProcess (8.5) / tests	2m 8s
SeparateProcess (8.3) / tests	2m 12s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 7s
DatabaseLive (8.5, MySQLi, 8.0) / tests	8m 3s
SeparateProcess (8.2) / tests	2m 3s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 12s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 33s
DatabaseLive (8.3, SQLite3, 8.0) / tests	1m 5s
DatabaseLive (8.2, SQLite3, 8.0) / tests	1m 55s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 30s
DatabaseLive (8.2, Postgre, 8.0) / tests	2m 48s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	5m 3s
DatabaseLive (8.5, OCI8, 8.0) / tests	6m 57s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 6s
DatabaseLive (8.4, Postgre, 8.0) / tests	1m 35s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 43s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	4m 46s
DatabaseLive (8.4, SQLite3, 8.0) / tests	1m 4s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 35s
DatabaseLive (8.2, OCI8, 8.0) / tests	8m 11s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 23s
DatabaseLive (8.3, Postgre, 8.0) / tests	1m 39s
DatabaseLive (8.3, MySQLi, 8.0) / tests	3m 51s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 25s
Upload coverage results to Coveralls / coveralls	43s
	1h 48m 42s

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