chore: release 1.8.4 (#904)

* updated CHANGELOG.md [ci skip]

* updated setup.py [ci skip]

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fa81ef3..b248551 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+### [1.8.4](https://www.github.com/googleapis/google-api-python-client/compare/v1.8.3...v1.8.4) (2020-05-20)
+
+
+### Bug Fixes
+
+* don't try to import GAE API in other environments ([#903](https://www.github.com/googleapis/google-api-python-client/issues/903)) ([09e6447](https://www.github.com/googleapis/google-api-python-client/commit/09e644719166aecb21a01b6d5ee9898843e7cd58))
+* the turn down date for global batch uri ([#901](https://www.github.com/googleapis/google-api-python-client/issues/901)) ([6ddadd7](https://www.github.com/googleapis/google-api-python-client/commit/6ddadd7753134c671628ad3f4598595b0abb1457))
+
 ### [1.8.3](https://www.github.com/googleapis/google-api-python-client/compare/v1.8.2...v1.8.3) (2020-05-01)