Update dependency com.github.spotbugs:spotbugs-maven-plugin to v4.8.6.6

Author: renovate[bot]

pom.xml

@@ -151,7 +151,7 @@
             <plugin>
                 <groupId>com.github.spotbugs</groupId>
                 <artifactId>spotbugs-maven-plugin</artifactId>
-                <version>4.7.3.1</version>
+                <version>4.8.6.6</version>
                 <configuration>
                     <effort>Low</effort>
                     <threshold>Max</threshold>