[Bug][java] Missing Log4j dependencies in IDE support #1209

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Description

Running the Java example locally fails with:

NoClassDefFoundError: org/apache/logging/log4j/core/Layout

It looks like the Log4j dependencies are missing from the IDE classpath because runtime declares them as provided. This may be related to #954, which removed them from plan.

Adding the following to ide-support/pom.xml resolved the missing-class error in local testing. It also pulls in log4j-api and log4j-core. Would this be an appropriate fix?

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-slf4j-impl</artifactId>
    <version>${log4j2.version}</version>
</dependency>

How to reproduce

1. Import the project into IntelliJ IDEA.
2. Create a run configuration for org.apache.flink.agents.examples.WorkflowSingleAgentExample, using the examples module classpath.
3. Enable "Add dependencies with provided scope to classpath" and run it.

Version and environment

• Flink Agents: 0.4-SNAPSHOT, main (99103da)
• Flink: 2.3.0
• Java: OpenJDK 17.0.15

Are you willing to submit a PR?

• I'm willing to submit a PR!