changelog: Update through HEAD.
changelog: Update through HEAD.

The great-grandparent commit, "a3ae74 'main': Fix the last commit's bug
concerning parameter elision not happening in redirects in command
position.", is not added because it's not a change with respect
to 0.7.1.

P71/zsh-syntax-highlighting,P71/zsh-syntax-highlighting,phy1729/zsh-syntax-highlighting,phy1729/zsh-syntax-highlighting,zsh-users/zsh-syntax-highlighting,zsh-users/zsh-syntax-highlighting