chore: release 2.2.0 (googleapis#70)

🤖 I have created a release \*beep\* \*boop\* 
---
## [2.2.0](https://www.github.com/googleapis/python-tasks/compare/v2.1.0...v2.2.0) (2021-02-24)


### Features

* add from_service_account_info method to clients ([e1fdc76](https://www.github.com/googleapis/python-tasks/commit/e1fdc76f5369e53067a1748aecce9fa3940d9ee1))
* **v2beta3, v2beta2:** introducing fields: ListQueuesRequest.read_mask, GetQueueRequest.read_mask, Queue.task_ttl, Queue.tombstone_ttl, Queue.stats and introducing messages: QueueStats ([e1fdc76](https://www.github.com/googleapis/python-tasks/commit/e1fdc76f5369e53067a1748aecce9fa3940d9ee1))


### Bug Fixes

* remove client recv msg limit fix: add enums to `types/__init__.py` ([googleapis#56](https://www.github.com/googleapis/python-tasks/issues/56)) ([6a5bfaf](https://www.github.com/googleapis/python-tasks/commit/6a5bfaf63b46567897c36907772b10ea4b0dff43))
* Update sample comments ([googleapis#58](https://www.github.com/googleapis/python-tasks/issues/58)) ([3eb30b3](https://www.github.com/googleapis/python-tasks/commit/3eb30b349b9092a2a2fb08116855139418ebd371))


### Documentation

* fix type references in docstrings ([e1fdc76](https://www.github.com/googleapis/python-tasks/commit/e1fdc76f5369e53067a1748aecce9fa3940d9ee1))
* **v2beta2:** updates to AppEngineHttpRequest description ([e1fdc76](https://www.github.com/googleapis/python-tasks/commit/e1fdc76f5369e53067a1748aecce9fa3940d9ee1))
* **v2beta3:** updates to max burst size description ([e1fdc76](https://www.github.com/googleapis/python-tasks/commit/e1fdc76f5369e53067a1748aecce9fa3940d9ee1))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

chore: release 2.1.0 (googleapis#53)

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

chore: release 2.0.0 (googleapis#40)

* chore: updated CHANGELOG.md [ci skip]

* chore: updated setup.cfg [ci skip]

* chore: updated setup.py

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

chore: release 1.5.0 (googleapis#9)

chore: release 1.4.0 (googleapis#6)

chore(tasks): release 1.3.0 (#9595)

Release tasks 1.2.1 (#9012)

* Release 1.2.1

* Adjust changelog grouping.

Release 1.2.0 (#8770)

Release tasks 1.1.0 (#7981)

Release tasks 1.0.0 (#7818)