Update CHANGELOG for 8.10.4
Update CHANGELOG for 8.10.4

Signed-off-by: Rémy Coutable <4ea0184b9df19e0786dd00b28e6daa4d26baeb3e@rymai.me>

dplarson/gitlabhq,openwide-java/gitlabhq,shinexiao/gitlabhq,jirutka/gitlabhq,openwide-java/gitlabhq,iiet/iiet-git,shinexiao/gitlabhq,daiyu/gitlab-zh,mmkassem/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,allysonbarros/gitlabhq,daiyu/gitlab-zh,dreampet/gitlab,mmkassem/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,daiyu/gitlab-zh,LUMC/gitlabhq,dplarson/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,allysonbarros/gitlabhq,dreampet/gitlab,stoplightio/gitlabhq,openwide-java/gitlabhq,jirutka/gitlabhq,axilleas/gitlabhq,shinexiao/gitlabhq,allysonbarros/gitlabhq,jirutka/gitlabhq,darkrasid/gitlabhq,LUMC/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,axilleas/gitlabhq,t-zuehlsdorff/gitlabhq,htve/GitlabForChinese,screenpages/gitlabhq,openwide-java/gitlabhq,mr-dxdy/gitlabhq,t-zuehlsdorff/gitlabhq,shinexiao/gitlabhq,darkrasid/gitlabhq,htve/GitlabForChinese,allysonbarros/gitlabhq,dplarson/gitlabhq,screenpages/gitlabhq,mr-dxdy/gitlabhq,axilleas/gitlabhq,daiyu/gitlab-zh,t-zuehlsdorff/gitlabhq,SVArago/gitlabhq,htve/GitlabForChinese,screenpages/gitlabhq,icedwater/gitlabhq,iiet/iiet-git,axilleas/gitlabhq,icedwater/gitlabhq,mr-dxdy/gitlabhq,stoplightio/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,mr-dxdy/gitlabhq,dreampet/gitlab,LUMC/gitlabhq,darkrasid/gitlabhq,mmkassem/gitlabhq,screenpages/gitlabhq,t-zuehlsdorff/gitlabhq,LUMC/gitlabhq,SVArago/gitlabhq,darkrasid/gitlabhq,iiet/iiet-git