chore: updating CHANGELOG for v0.15.1 #4153

Job	Run time
Check the title of the pull request	0s
Check the title of the pull request	0s
Update CHANGELOG (on release)	1m 21s
Update CHANGELOG (on release)	1m 19s
Build wheelhouse and smoke tests	0s
Build wheelhouse and smoke tests	0s
Documentation style check	0s
Documentation style check	0s
Documentation build	0s
Documentation build	0s
Running unit tests	0s
Running unit tests	0s
Running integration tests	0s
Running integration tests	0s
Testing solvers and coverage (Linux)	0s
Testing solvers and coverage (Linux)	0s
Testing and coverage (Windows)	0s
Testing and coverage (Windows)	0s
Testing solvers and coverage (Windows)	0s
Testing solvers and coverage (Windows)	0s
Testing and coverage (Linux)	0s
Testing and coverage (Linux)	0s
Testing and coverage visualization(Linux)	0s
Testing and coverage visualization(Linux)	0s
Testing and coverage Visualization (Windows)	0s
Testing and coverage Visualization (Windows)	0s
Package library	0s
Package library	0s
Release project	0s
Release project	0s
Upload release documentation	0s
Upload release documentation	0s
	2m 40s

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