chore(main): release 1.6.0 (#177)

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

Author: release-please[bot]

packages/google-cloud-trace/CHANGELOG.md

@@ -4,6 +4,18 @@
 
 [1]: https://pypi.org/project/google-cloud-trace/#history
 
+## [1.6.0](https://github.com/googleapis/python-trace/compare/v1.5.1...v1.6.0) (2022-02-11)
+
+
+### Features
+
+* add api key support ([#176](https://github.com/googleapis/python-trace/issues/176)) ([5c1ea85](https://github.com/googleapis/python-trace/commit/5c1ea8505ba5dbbf9d0d544db95e14bd63e1be53))
+
+
+### Bug Fixes
+
+* resolve DuplicateCredentialArgs error when using credentials_file ([e0294af](https://github.com/googleapis/python-trace/commit/e0294af5d06c22a8739e9d50f514e4bbe85e8463))
+
 ### [1.5.1](https://www.github.com/googleapis/python-trace/compare/v1.5.0...v1.5.1) (2021-11-01)
 
 

packages/google-cloud-trace/setup.py

@@ -22,7 +22,7 @@
 
 name = "google-cloud-trace"
 description = "Cloud Trace API client library"
-version = "1.5.1"
+version = "1.6.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'