chore: Next is 0.3.4

[kabir]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @kabir, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request is a routine chore to update the project's version across its various modules and examples. It advances the codebase to "0.3.4.Beta1-SNAPSHOT", preparing for the next development iteration and ensuring all components correctly reference the upcoming beta version of the SDK.

Highlights

• Version Update: The project's parent version has been uniformly updated from "0.3.3.Final" to "0.3.4.Beta1-SNAPSHOT" across all Maven modules.
• Dependency Alignment: The JBang dependencies in the 'helloworld' example client have been updated to align with the new "0.3.4.Beta1-SNAPSHOT" version.

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[gemini-code-assist]

Code Review

This pull request updates the project version from 0.3.3.Final to 0.3.4.Beta1-SNAPSHOT across all modules. The changes are consistent and appear to be part of the release process for the next version. I've suggested a small improvement in the HelloWorldRunner.java jbang script to use a property for the version, which will make future updates easier.

[gemini-code-assist]

For better maintainability, consider defining the version as a jbang property and reusing it in the //DEPS directives. This avoids repeating the version string and makes future updates easier.

Suggested change

	//DEPS io.github.a2asdk:a2a-java-sdk-client:0.3.4.Beta1-SNAPSHOT
	//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-jsonrpc:0.3.4.Beta1-SNAPSHOT
	//PROPS a2a.version=0.3.4.Beta1-SNAPSHOT
	//DEPS io.github.a2asdk:a2a-java-sdk-client:${a2a.version}
	//DEPS io.github.a2asdk:a2a-java-sdk-client-transport-jsonrpc:${a2a.version}