test: fix `CreateNewChangelogTest` removing uncommitted changes #14468

Job	Run time
Setup PHP Version for Code Coverage	4s
Others (8.4) / Sanity Tests	2m 58s
Others (8.5) / Sanity Tests	2m 30s
Others (8.2) / Sanity Tests	4m 7s
Others (8.3) / Sanity Tests	2m 41s
CacheLive (8.3) / Cache Live Tests	2m 8s
CacheLive (8.5) / Cache Live Tests	2m 18s
CacheLive (8.4) / Cache Live Tests	2m 9s
CacheLive (8.2) / Cache Live Tests	2m 27s
SeparateProcess (8.3) / tests	3m 42s
SeparateProcess (8.2) / tests	3m 33s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	5m 27s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 35s
SeparateProcess (8.4) / tests	3m 25s
SeparateProcess (8.5) / tests	3m 37s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 51s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 32s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 24s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 2s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 47s
DatabaseLive (8.5, MySQLi, 8.0) / tests	5m 25s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 46s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 8s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 23s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 46s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 32s
DatabaseLive (8.3, MySQLi, 8.0) / tests	6m 0s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 23s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 18s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 57s
DatabaseLive (8.5, OCI8, 8.0) / tests	6m 51s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 52s
DatabaseLive (8.5, Postgre, 8.0) / tests	2m 44s
DatabaseLive (8.5, SQLite3, 8.0) / tests	2m 16s
Upload coverage results to Coveralls / coveralls	43s
	2h 14m 21s

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