Update CHANGELOG.md for 11.6.10
Update CHANGELOG.md for 11.6.10

[ci skip]
stoplightio/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,iiet/iiet-git,iiet/iiet-git,mmkassem/gitlabhq,mmkassem/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,mmkassem/gitlabhq