chore(deps): update dependency com.google.errorprone:error_prone_core to v2.6.0 (#236)

Author: renovate-bot

pom.xml

@@ -188,7 +188,7 @@ limitations under the License.
                 <path>
                   <groupId>com.google.errorprone</groupId>
                   <artifactId>error_prone_core</artifactId>
-                  <version>2.5.1</version>
+                  <version>2.6.0</version>
                 </path>
               </annotationProcessorPaths>
             </configuration>