chore: Bump to Rector 2.1.6 and clean up rector skip config #13605

Job	Run time
Setup PHP Version for Code Coverage	3s
Others (8.1) / Sanity Tests	2m 47s
Others (8.2) / Sanity Tests	4m 10s
Others (8.4) / Sanity Tests	2m 44s
Others (8.3) / Sanity Tests	2m 47s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 18s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 17s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 53s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 31s
DatabaseLive (8.2, MySQLi, 8.0) / tests	6m 17s
DatabaseLive (8.3, SQLite3, 8.0) / tests	3m 23s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 45s
DatabaseLive (8.1, MySQLi, 8.0) / tests	4m 30s
DatabaseLive (8.3, MySQLi, 8.0) / tests	5m 41s
DatabaseLive (8.4, Postgre, 8.0) / tests	3m 11s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 31s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 29s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 46s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 34s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 32s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 41s
DatabaseLive (8.3, Postgre, 8.0) / tests	3m 26s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 57s
DatabaseLive (8.1, Postgre, 8.0) / tests	3m 1s
DatabaseLive (8.4, SQLite3, 8.0) / tests	3m 13s
SeparateProcess (8.1) / tests	3m 57s
CacheLive (8.2) / Cache Live Tests	2m 40s
CacheLive (8.4) / Cache Live Tests	2m 27s
CacheLive (8.3) / Cache Live Tests	2m 17s
SeparateProcess (8.4) / tests	4m 10s
SeparateProcess (8.3) / tests	4m 4s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 4s
CacheLive (8.1) / Cache Live Tests	2m 16s
SeparateProcess (8.2) / tests	3m 45s
Upload coverage results to Coveralls / coveralls	48s
	2h 19m 55s

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