deps: update dependency com.google.protobuf:protobuf-java-util to v4 (#1951)

* deps: update dependency com.google.protobuf:protobuf-java-util to v4

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -75,7 +75,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.25.3</version>
+      <version>4.26.0</version>
     </dependency>
     <dependency>
       <groupId>com.google.cloud</groupId>

samples/snapshot/pom.xml

@@ -61,7 +61,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.25.3</version>
+      <version>4.26.0</version>
     </dependency>
 
     <dependency>

samples/snippets/pom.xml

@@ -80,7 +80,7 @@
     <dependency>
       <groupId>com.google.protobuf</groupId>
       <artifactId>protobuf-java-util</artifactId>
-      <version>3.25.3</version>
+      <version>4.26.0</version>
     </dependency>
 
     <dependency>