Update dependency com.github.spotbugs:spotbugs-annotations to v4.9.4

Author: renovate[bot]

pom.xml

@@ -166,7 +166,7 @@
     <dependency>
       <groupId>com.github.spotbugs</groupId>
       <artifactId>spotbugs-annotations</artifactId>
-      <version>4.9.3</version>
+      <version>4.9.4</version>
       <scope>compile</scope>
     </dependency>