Bump protobuf-java from 3.18.2 to 3.19.6 in /interactive_engine (#2109)

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.18.2 to 3.19.6.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.18.2...v3.19.6)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

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interactive_engine/executor/engine/pegasus/clients/java/client/pom.xml

@@ -9,7 +9,7 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <protobuf.version>3.18.2</protobuf.version>
+        <protobuf.version>3.19.6</protobuf.version>
         <protoc.grpc.version>1.42.1</protoc.grpc.version>
         <grpc.version>1.42.1</grpc.version>
     </properties>

interactive_engine/pom.xml

@@ -81,7 +81,7 @@
     <maven.surefire.version>2.22.2</maven.surefire.version>
     <os.maven.plugin.version>1.6.2</os.maven.plugin.version>
     <protoc.version>3.18.0</protoc.version>
-    <protobuf.version>3.18.2</protobuf.version>
+    <protobuf.version>3.19.6</protobuf.version>
     <logback.version>1.2.3</logback.version>
     <zookeeper.version>3.6.3</zookeeper.version>
     <kafka.version>2.5.0</kafka.version>