Bump com.github.spotbugs:spotbugs-annotations from 4.9.3 to 4.9.4

Bumps [com.github.spotbugs:spotbugs-annotations](https://github.com/spotbugs/spotbugs) from 4.9.3 to 4.9.4.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.9.3...4.9.4)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs-annotations
  dependency-version: 4.9.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -69,7 +69,7 @@
   <properties>
     <!--Dependency versions-->
     <arpnetworking.commons.version>3.1.1</arpnetworking.commons.version>
-    <spotbugs.annotations.version>4.9.3</spotbugs.annotations.version>
+    <spotbugs.annotations.version>4.9.4</spotbugs.annotations.version>
     <hamcrest.version>3.0</hamcrest.version>
     <jsr305.version>3.0.2</jsr305.version>
     <junit.version>4.13.2</junit.version>