Updating errorprone to 2.31

Author: aaime

geowebcache/pom.xml

@@ -87,7 +87,7 @@
     <jackson.databind.version>${jackson.version}</jackson.databind.version>
     <jetty.version>9.4.55.v20240627</jetty.version>
     <errorProneFlags></errorProneFlags>
-    <errorProne.version>2.24.1</errorProne.version>
+    <errorProne.version>2.31.0</errorProne.version>
     <javac.version>9+181-r4173-1</javac.version>
     <pmd.version>7.10.0</pmd.version>
     <checkstyle.skip>false</checkstyle.skip>
@@ -918,7 +918,7 @@
               <fork>false</fork>
               <compilerArgs>
                 <arg>-XDcompilePolicy=simple</arg>
-                <arg>-Xplugin:ErrorProne -XepExcludedPaths:${project.build.directory}/generated-sources/.* ${errorProneFlags}</arg>
+                <arg>-Xplugin:ErrorProne -XepExcludedPaths:${project.build.directory}/generated-sources/.* -Xep:SelfAssertion:OFF ${errorProneFlags}</arg>
                 <arg>-Xlint:${lint}</arg>
                 <arg>-Werror</arg>
               </compilerArgs>