chore: release 3.1.1 (#126)

🤖 I have created a release \*beep\* \*boop\*
---
### [3.1.1](https://www.github.com/googleapis/python-bigquery-datatransfer/compare/v3.1.0...v3.1.1) (2021-04-07)


### Bug Fixes

* require proto-plus>=1.15.0 ([91910f1](https://www.github.com/googleapis/python-bigquery-datatransfer/commit/91910f1ea01c5324fa63a7d85a034d08aeaae3f9))
* use correct retry deadline ([#121](https://www.github.com/googleapis/python-bigquery-datatransfer/issues/121)) ([91910f1](https://www.github.com/googleapis/python-bigquery-datatransfer/commit/91910f1ea01c5324fa63a7d85a034d08aeaae3f9))
---


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

@@ -4,6 +4,14 @@
 
 [1]: https://pypi.org/project/google-cloud-bigquery-datatransfer/#history
 
+### [3.1.1](https://www.github.com/googleapis/python-bigquery-datatransfer/compare/v3.1.0...v3.1.1) (2021-04-07)
+
+
+### Bug Fixes
+
+* require proto-plus>=1.15.0 ([91910f1](https://www.github.com/googleapis/python-bigquery-datatransfer/commit/91910f1ea01c5324fa63a7d85a034d08aeaae3f9))
+* use correct retry deadline ([#121](https://www.github.com/googleapis/python-bigquery-datatransfer/issues/121)) ([91910f1](https://www.github.com/googleapis/python-bigquery-datatransfer/commit/91910f1ea01c5324fa63a7d85a034d08aeaae3f9))
+
 ## [3.1.0](https://www.github.com/googleapis/python-bigquery-datatransfer/compare/v3.0.1...v3.1.0) (2021-03-22)
 
 

setup.py

@@ -22,7 +22,7 @@
 
 name = "google-cloud-bigquery-datatransfer"
 description = "BigQuery Data Transfer API client library"
-version = "3.1.0"
+version = "3.1.1"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'