chore(main): release 2.6.0 (googleapis#350)

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

chore(main): release 2.5.0 (googleapis#335)

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

chore: release 2.4.0 (googleapis#316)

* chore: release 2.4.0

* chore: delete googleapis#318 from log (already released)

* Update changelog to include published versions

* insert newline in changelog

* insert newline in changelog

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Bu Sun Kim <8822365+busunkim96@users.noreply.github.com>
Co-authored-by: Anthonios Partheniou <partheniou@google.com>

chore: release 2.3.2 (googleapis#324)

* fix: address broken wheels in version 2.3.1

* Update CHANGELOG.md

chore: release 2.3.1 (googleapis#319)

* ci: run lint / mypy / unit tests / coverage as GH actions (googleapis#287)

Make GH Action checks required

* fix: exclude function target from retry deadline exceeded exception message (googleapis#318)

* Exclude function target from retry deadline exceeded exception message

* apply similar patch in retry_async.py

Co-authored-by: Anthonios Partheniou <partheniou@google.com>

* chore: release 2.3.1

* enable checks on release branch v2.3.1

Co-authored-by: Tres Seaver <tseaver@palladion.com>
Co-authored-by: Chris Wilson <46912004+sushicw@users.noreply.github.com>

chore: release 1.31.5 (googleapis#322)

chore: release 2.3.0 (googleapis#314)

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

chore: release 1.31.4 (googleapis#306)

chore: release 2.2.2 (googleapis#302)

🤖 I have created a release \*beep\* \*boop\*
---
### [2.2.2](https://www.github.com/googleapis/python-api-core/compare/v2.2.1...v2.2.2) (2021-11-02)


### Bug Fixes

* make 'gapic_v1.method.DEFAULT' a typed object ([googleapis#292](https://www.github.com/googleapis/python-api-core/issues/292)) ([ffc51f0](https://www.github.com/googleapis/python-api-core/commit/ffc51f03c7ce5d9f009ba859b8df385d52925578))
---


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 2.2.1 (googleapis#296)

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