CHORE: updating CHANGELOG for v0.15.6

CHORE: updating CHANGELOG for v0.15.5

CHORE: updating CHANGELOG for v0.15.4

CHORE: updating CHANGELOG for v0.15.3

CHORE: updating CHANGELOG for v0.15.2

CHORE: updating CHANGELOG for v0.15.1

Merge branch 'main' into release/0.15

Merge branch 'main' into release/0.14

# Conflicts:
#	src/ansys/aedt/core/__init__.py

release 0.14

Merge branch 'main' into release/0.13