docs: release notes for the v12.2.7 release (#23630)
docs: release notes for the v12.2.7 release (#23630)


crisbeto/material2,crisbeto/material2,josephperrott/material2,crisbeto/material2,josephperrott/material2,josephperrott/material2,josephperrott/material2,angular/components,angular/components,angular/components,crisbeto/material2,angular/components,josephperrott/material2