Update the a2a-java samples to A2A Java SDK 0.3.0.Final (#395)

# Description

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- [x] Follow the [`CONTRIBUTING`
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Author: fjuma

samples/java/agents/dice_agent_multi_transport/client/src/main/java/com/samples/a2a/client/TestClientRunner.java

@@ -1,7 +1,7 @@
 ///usr/bin/env jbang "$0" "$@" ; exit $?
-//DEPS io.github.a2asdk:a2a-java-sdk-client:0.3.0.Beta2
-//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-jsonrpc:0.3.0.Beta2
-//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-grpc:0.3.0.Beta2
+//DEPS io.github.a2asdk:a2a-java-sdk-client:0.3.0.Final
+//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-jsonrpc:0.3.0.Final
+//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-grpc:0.3.0.Final
 //DEPS com.fasterxml.jackson.core:jackson-databind:2.15.2
 //DEPS io.grpc:grpc-netty-shaded:1.69.1
 //SOURCES TestClient.java

samples/java/agents/magic_8_ball_security/client/src/main/java/com/samples/a2a/client/TestClientRunner.java

@@ -1,9 +1,9 @@
 /// usr/bin/env jbang "$0" "$@" ; exit $?
-//DEPS io.github.a2asdk:a2a-java-sdk-client:0.3.0.Beta2
-//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-jsonrpc:0.3.0.Beta2
-//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-grpc:0.3.0.Beta2
-//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-rest:0.3.0.Beta2
-//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-spi:0.3.0.Beta2
+//DEPS io.github.a2asdk:a2a-java-sdk-client:0.3.0.Final
+//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-jsonrpc:0.3.0.Final
+//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-grpc:0.3.0.Final
+//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-rest:0.3.0.Final
+//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-spi:0.3.0.Final
 //DEPS com.fasterxml.jackson.core:jackson-databind:2.15.2
 //DEPS io.grpc:grpc-netty-shaded:1.69.1
 //DEPS org.keycloak:keycloak-authz-client:25.0.1

samples/java/agents/pom.xml

@@ -23,7 +23,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <!-- A2A SDK version - centralized for all agents -->
-        <io.a2a.sdk.version>0.3.0.Beta2</io.a2a.sdk.version>
+        <io.a2a.sdk.version>0.3.0.Final</io.a2a.sdk.version>
 
         <!-- Common dependency versions -->
         <jakarta.enterprise.cdi-api.version>4.1.0</jakarta.enterprise.cdi-api.version>