Changelog.md: Update references to sigs.k8s.io/promo-tools (#7656)
Changelog.md: Update references to sigs.k8s.io/promo-tools (#7656)

Signed-off-by: Stephen Augustus <0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33@auggie.dev>
kubernetes/ingress-nginx,kubernetes/ingress-nginx,kubernetes/ingress-nginx,canhnt/ingress,kubernetes/ingress-nginx,canhnt/ingress,canhnt/ingress,canhnt/ingress,kubernetes/ingress-nginx