fix(job_key): changed job_id to job_key

[giuliastf]

Fix: #539

Development Package

• Add this package as a dependency in your pyproject.toml:

[project]
dependencies = [
  # Exact version:
  "uipath==2.1.44.dev1005591056",

  # Any version from PR
  "uipath>=2.1.44.dev1005590000,<2.1.44.dev1005600000"
]

[[tool.uv.index]]
name = "testpypi"
url = "https://test.pypi.org/simple/"
publish-url = "https://test.pypi.org/legacy/"
explicit = true

[tool.uv.sources]
uipath = { index = "testpypi" }

[Copilot]

Pull Request Overview

This PR fixes an inconsistency in environment variable naming by changing references from job_id to job_key to align with the actual header name being used.

• Updated import to use ENV_JOB_KEY instead of ENV_JOB_ID
• Changed environment variable lookup to use the correct ENV_JOB_KEY constant

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