chore(firestore): release 1.6.1 (#10031)

chore(firestore): release 1.6.0 (#9621)

* Release firestore 1.6.0

* Update firestore/CHANGELOG.md

Co-Authored-By: Tres Seaver <tseaver@palladion.com>

chore(firestore): release 1.5.0 (#9470)

Release 'google-cloud-firestore 1.4.0'. (#8982)

Release firestore 1.3.0 (#8625)

* Release 1.3.0

Release firestore-1.2.0 (#8005)

Release 1.1.0 (#7828)

Release 1.0.0 (#7823)

Release firestore 0.32.1 (#7672)

* Update google-api-core dependency
* Release 0.32.1

Release 0.32.0 (#7634)