test: fix `CreateNewChangelogTest` removing uncommitted changes #14469

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.2) / Sanity Tests	4m 10s
Others (8.3) / Sanity Tests	2m 52s
Others (8.5) / Sanity Tests	2m 39s
Others (8.4) / Sanity Tests	3m 3s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 55s
DatabaseLive (8.5, Postgre, 8.0) / tests	3m 40s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 32s
DatabaseLive (8.5, SQLite3, 8.0) / tests	2m 23s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	7m 2s
DatabaseLive (8.4, Postgre, 8.0) / tests	3m 22s
DatabaseLive (8.3, Postgre, 8.0) / tests	3m 33s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 31s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	6m 8s
SeparateProcess (8.5) / tests	3m 47s
DatabaseLive (8.2, MySQLi, 8.0) / tests	6m 22s
SeparateProcess (8.2) / tests	3m 44s
DatabaseLive (8.2, MySQLi, 5.7) / tests	4m 28s
SeparateProcess (8.3) / tests	3m 35s
CacheLive (8.5) / Cache Live Tests	2m 18s
DatabaseLive (8.3, MySQLi, 8.0) / tests	7m 1s
CacheLive (8.3) / Cache Live Tests	2m 11s
DatabaseLive (8.4, MySQLi, 8.0) / tests	5m 48s
SeparateProcess (8.4) / tests	4m 25s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 15s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 27s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 42s
CacheLive (8.4) / Cache Live Tests	2m 9s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 39s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	6m 17s
CacheLive (8.2) / Cache Live Tests	3m 20s
DatabaseLive (8.5, MySQLi, 8.0) / tests	4m 10s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 56s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 56s
Upload coverage results to Coveralls	-1s
	2h 25m 21s

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