update error_prone and gson

java/util/pom.xml

@@ -25,7 +25,7 @@
     <dependency>
       <groupId>com.google.errorprone</groupId>
       <artifactId>error_prone_annotations</artifactId>
-      <version>2.3.2</version>
+      <version>2.3.3</version>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>
@@ -35,7 +35,7 @@
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>
-      <version>2.8.5</version>
+      <version>2.8.6</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>