chore: release 1.3.0 (googleapis#456)

* updated CHANGELOG.md [ci skip]

* updated setup.py

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.2.1 (googleapis#397)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.2.0 (googleapis#382)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.1.2 (googleapis#364)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.1.1 (googleapis#356)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

chore: release 1.1.0 (googleapis#352)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

chore: release 1.0.1 (googleapis#320)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

chore: release 1.0.0 (googleapis#309)

Release google-cloud-ndb to GA (1.0.0)

chore: release 0.2.2 (googleapis#283)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

chore: release 0.2.1 (googleapis#235)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]