[FLINK-11423] Propagate the error message from Main method to JarRunHandler

[lavkesh]

What is the purpose of the change

• We want to propgrate error occured in the filnk program submited by jar/run API to the client.

Brief change log

• Added additional message into ProgramInvocationException thrown inside PackagedProgram.callMainMethod()

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: No
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? No
• If yes, how is the feature documented? not applicable

[tillrohrmann]

Thanks for this improvement @lavkesh. LGTM. Merging.