fix(deps): update dependency com.github.spotbugs:spotbugs to v4.9.1

Author: renovate[bot]

pom.xml

@@ -56,7 +56,7 @@
             <!-- used so that lombok can generate suppressions for spotbugs. It needs to find it on the relevant classpath -->
             <groupId>com.github.spotbugs</groupId>
             <artifactId>spotbugs</artifactId>
-            <version>4.8.6</version>
+            <version>4.9.1</version>
             <scope>provided</scope>
         </dependency>
 
@@ -395,7 +395,7 @@
                     <dependency>
                         <groupId>com.github.spotbugs</groupId>
                         <artifactId>spotbugs</artifactId>
-                        <version>4.8.6</version>
+                        <version>4.9.1</version>
                     </dependency>
                 </dependencies>
                 <executions>