chore: release 2.26.0 (googleapis#937)

🤖 I have created a release \*beep\* \*boop\*
---
## [2.26.0](https://www.github.com/googleapis/python-bigquery/compare/v2.25.2...v2.26.0) (2021-09-01)


### Features

* set the X-Server-Timeout header when timeout is set ([googleapis#927](https://www.github.com/googleapis/python-bigquery/issues/927)) ([ba02f24](https://www.github.com/googleapis/python-bigquery/commit/ba02f248ba9c449c34859579a4011f4bfd2f4a93))


### Bug Fixes

* guard imports against unsupported pyarrow versions ([googleapis#934](https://www.github.com/googleapis/python-bigquery/issues/934)) ([b289076](https://www.github.com/googleapis/python-bigquery/commit/b28907693bbe889becc1b9c8963f0a7e1ee6c35a))
---


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

CHANGELOG.md

@@ -5,6 +5,18 @@
 [1]: https://pypi.org/project/google-cloud-bigquery/#history
 
 
+## [2.26.0](https://www.github.com/googleapis/python-bigquery/compare/v2.25.2...v2.26.0) (2021-09-01)
+
+
+### Features
+
+* set the X-Server-Timeout header when timeout is set ([#927](https://www.github.com/googleapis/python-bigquery/issues/927)) ([ba02f24](https://www.github.com/googleapis/python-bigquery/commit/ba02f248ba9c449c34859579a4011f4bfd2f4a93))
+
+
+### Bug Fixes
+
+* guard imports against unsupported pyarrow versions ([#934](https://www.github.com/googleapis/python-bigquery/issues/934)) ([b289076](https://www.github.com/googleapis/python-bigquery/commit/b28907693bbe889becc1b9c8963f0a7e1ee6c35a))
+
 ### [2.25.2](https://www.github.com/googleapis/python-bigquery/compare/v2.25.1...v2.25.2) (2021-08-31)
 
 

google/cloud/bigquery/version.py

@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.25.2"
+__version__ = "2.26.0"