update protobuf-java to 3.2.0.

To avoid protocolbuffers/protobuf#7970

Author: robberphex

opensergo-dashboard-server/pom.xml

@@ -81,10 +81,15 @@
             <artifactId>grpc-core</artifactId>
             <version>1.42.2</version>
         </dependency>
+        <dependency>
+            <groupId>com.google.protobuf</groupId>
+            <artifactId>protobuf-java</artifactId>
+            <version>3.20.0</version>
+        </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java-util</artifactId>
-            <version>3.19.4</version>
+            <version>3.20.0</version>
         </dependency>
 
         <dependency>