chore: release 0.120.21 (#484)
chore: release 0.120.21 (#484)

:robot: I have created a release \*beep\* \*boop\*
---
### [0.120.21](https://www.github.com/googleapis/java-errorreporting/compare/v0.120.20...v0.120.21) (2021-04-09)


### Dependencies

* update dependency com.google.cloud:google-cloud-core to v1.94.6 ([#483](https://www.github.com/googleapis/java-errorreporting/issues/483)) ([31852b4](https://www.github.com/googleapis/java-errorreporting/commit/31852b4cbd87c47b578f30c8a0e2fd016bf44161))
---


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