Update CHANGELOG.md
Update CHANGELOG.md

ref #8277, ref #8250, ref #8262, ref #8165, ref #8093, ref #8056, ref #8043, ref #7970, ref #7914, ref #7864, ref #7750, ref #7740, ref #7697, ref #7619, ref #5619, ref #4030, ref #5278, ref #3302, ref #2524
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana