deps: update dependency com.google.protobuf:protobuf-java-util to v4.28.3 (#2237)

Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -75,7 +75,7 @@
     <dependency>
       <groupId>com.google.protobufgroupId>
       <artifactId>protobuf-java-utilartifactId>
-      <version>4.28.2version>
+      <version>4.28.3version>
     dependency>
     <dependency>
       <groupId>com.google.cloudgroupId>

samples/snapshot/pom.xml

@@ -61,7 +61,7 @@
     <dependency>
       <groupId>com.google.protobufgroupId>
       <artifactId>protobuf-java-utilartifactId>
-      <version>4.28.2version>
+      <version>4.28.3version>
     dependency>
 
     <dependency>

samples/snippets/pom.xml

@@ -85,7 +85,7 @@
     <dependency>
       <groupId>com.google.protobufgroupId>
       <artifactId>protobuf-java-utilartifactId>
-      <version>4.28.2version>
+      <version>4.28.3version>
     dependency>
 
     <dependency>