Backport of Drivers: add cwd to exec/java drivers into release/1.9.x

[hc-github-team-nomad-core]

Backport

This PR is auto-generated from #24249 to be assessed for backporting due to the inclusion of the label backport/1.9.x.

The below text is copied from the body of the original PR.

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Adds support for setting the working directory in exec, raw_exec, and java drivers.

Fixes: #2224

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Overview of commits

• 658c429d75e405b5a30880b6a8d90b80196cc2a5