chore: release 0.121.4 (#579)

🤖 I have created a release \*beep\* \*boop\*
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### [0.121.4](https://www.github.com/googleapis/java-errorreporting/compare/v0.121.3...v0.121.4) (2021-07-05)


### Bug Fixes

* Add `shopt -s nullglob` to dependencies script ([#576](https://www.github.com/googleapis/java-errorreporting/issues/576)) ([0f706a9](https://www.github.com/googleapis/java-errorreporting/commit/0f706a9f6f07747186dc35d2a995654f99a00c47))


### Dependencies

* update dependency com.google.cloud:google-cloud-core to v1.95.3 ([#577](https://www.github.com/googleapis/java-errorreporting/issues/577)) ([f253b71](https://www.github.com/googleapis/java-errorreporting/commit/f253b71144cda1c354c873458c3fb84d0510b768))
* update dependency com.google.cloud:google-cloud-core to v1.95.4 ([#581](https://www.github.com/googleapis/java-errorreporting/issues/581)) ([1232c98](https://www.github.com/googleapis/java-errorreporting/commit/1232c9809addffba6548430aa67c16b466fc7197))
* update dependency com.google.cloud:google-cloud-shared-dependencies to v1.4.0 ([#582](https://www.github.com/googleapis/java-errorreporting/issues/582)) ([fe170db](https://www.github.com/googleapis/java-errorreporting/commit/fe170db3ae9e0f5facf36618de4baf057be4eba2))
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This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

Author: release-please[bot]

errorreporting/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-errorreporting</artifactId>
-      <version>0.121.4-beta-SNAPSHOT</version>
+      <version>0.121.4-beta</version>
     </dependency>
     <!-- {x-version-update-end} -->