docs: add release notes for v11.2.8 to CHANGELOG (#41453)
docs: add release notes for v11.2.8 to CHANGELOG (#41453)

This commit cherry-picks the v11.2.8 release notes from
154129b9defa9295f4684c595d1981c9b3c970c5 onto master.

Fixes #41452

PR Close #41453

JiaLiPassion/angular,gnomeontherun/angular,shairez/angular,mgechev/angular,angular-indonesia/angular,shairez/angular,gkalpak/angular,gnomeontherun/angular,brandonroberts/angular,gnomeontherun/angular,gkalpak/angular,mgechev/angular,ocombe/angular,angular/angular,angular-indonesia/angular,angular-indonesia/angular,gkalpak/angular,brandonroberts/angular,manekinekko/angular,ocombe/angular,ocombe/angular,manekinekko/angular,angular/angular,manekinekko/angular,JiaLiPassion/angular,ocombe/angular,JiaLiPassion/angular,manekinekko/angular,brandonroberts/angular,JiaLiPassion/angular,shairez/angular,gkalpak/angular,manekinekko/angular,angular-indonesia/angular,shairez/angular,gnomeontherun/angular,shairez/angular,brandonroberts/angular,mgechev/angular,angular/angular,ocombe/angular,manekinekko/angular,brandonroberts/angular,brandonroberts/angular,mgechev/angular,mgechev/angular,ocombe/angular,angular/angular