chore(deps): update dependency com.google.protobuf:protobuf-java to v4 (#2444)

Author: renovate-bot

pom.xml

@@ -516,7 +516,7 @@
     <project.auth.version>1.23.0</project.auth.version>
     <project.jsr305.version>3.0.2</project.jsr305.version>
     <project.gson.version>2.8.6</project.gson.version>
-    <project.protobuf-java.version>3.25.3</project.protobuf-java.version>
+    <project.protobuf-java.version>4.26.0</project.protobuf-java.version>
     <project.guava.version>33.0.0-jre</project.guava.version>
     <project.appengine.version>2.0.25</project.appengine.version>
     <project.xpp3.version>1.1.4c</project.xpp3.version>