Update SpotBugs

Author: basil

pom.xml

@@ -58,7 +58,7 @@
         <dependency>
             <groupId>com.github.spotbugs</groupId>
             <artifactId>spotbugs-annotations</artifactId>
-            <version>4.8.6</version>
+            <version>4.9.3</version>
             <optional>true</optional>
             <exclusions>
                 <exclusion>
@@ -116,7 +116,7 @@
             <plugin>
                 <groupId>com.github.spotbugs</groupId>
                 <artifactId>spotbugs-maven-plugin</artifactId>
-                <version>4.8.6.6</version>
+                <version>4.9.3.2</version>
                 <configuration>
                     <threshold>High</threshold>
                 </configuration>