Bump com.github.spotbugs:spotbugs-annotations from 4.8.3 to 4.8.4 (#564)

Bumps [com.github.spotbugs:spotbugs-annotations](https://github.com/spotbugs/spotbugs) from 4.8.3 to 4.8.4.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.8.3...4.8.4)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs-annotations
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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pom.xml

@@ -159,7 +159,7 @@
             <dependency>
                 <groupId>com.github.spotbugs</groupId>
                 <artifactId>spotbugs-annotations</artifactId>
-                <version>4.8.3</version>
+                <version>4.8.4</version>
             </dependency>
         </dependencies>
     </dependencyManagement>