[chore] Release 8.10.0 (take 2) (firebase#812)

Bumped version to 8.9.2 (firebase#772)

Bumped version to 8.9.1 (firebase#761)

Bumped version to 8.9.0 (firebase#737)

Bumped version to 8.8.0 (firebase#707)

Bumped version to 8.7.0 (firebase#692)

Bumped version to 8.6.1 (firebase#671)

Bumped version to 8.6.0 (firebase#654)

Bumped version to 8.5.0 (firebase#641)

Bumped version to 8.4.0 (firebase#627)