chore: release 1.26.1 (#693)

🤖 I have created a release \*beep\* \*boop\* 
---
### [1.26.1](https://www.github.com/googleapis/google-auth-library-python/compare/v1.26.0...v1.26.1) (2021-02-11)


### Documentation

* fix a typo in the user guide (avaiable -> available) ([#680](https://www.github.com/googleapis/google-auth-library-python/issues/680)) ([684457a](https://www.github.com/googleapis/google-auth-library-python/commit/684457afd3f81892e12d983a61672d7ea9bbe296))
---


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 +4,17 @@
 
 [1]: https://pypi.org/project/google-auth/#history
 
+### [1.26.1](https://www.github.com/googleapis/google-auth-library-python/compare/v1.26.0...v1.26.1) (2021-02-11)
+
+
+### Documentation
+
+* fix a typo in the user guide (avaiable -> available) ([#680](https://www.github.com/googleapis/google-auth-library-python/issues/680)) ([684457a](https://www.github.com/googleapis/google-auth-library-python/commit/684457afd3f81892e12d983a61672d7ea9bbe296))
+
+### Bug Fixes
+
+* revert workload identity federation support ([#691](https://github.com/googleapis/google-auth-library-python/pull/691))
+
 ## [1.26.0](https://www.github.com/googleapis/google-auth-library-python/compare/v1.25.0...v1.26.0) (2021-02-09)
 
 

setup.py

@@ -34,7 +34,7 @@
 with io.open("README.rst", "r") as fh:
     long_description = fh.read()
 
-version = "1.26.0"
+version = "1.26.1"
 
 setup(
     name="google-auth",