Fix changelog script to not fail on main branch #248

Job	Run time
Run lint checks	1m 33s
Run tests on python 3.10	8m 29s
Check if changelog was changed	13s
Run tests on python 3.11	4m 36s
Run tests on python 3.9	8m 49s
Test typing	3m 13s
Generate examples	7m 24s
Package cores repository	5m 2s
Test package distribution	5m 22s
Run tests on python 3.12	7m 16s
Run tests on python 3.13	7m 11s
	59m 8s

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