feat: use WaitJobRaw for process_tool

[GabrielVasilescu04]

Description

Currently, if the job started by the process_tool fails, then the agent execution fails as a whole. Replace the WaitJob trigger with WaitJobRaw which should prevent this from happening. If the job's state is faulted, WaitJob raises an error, but WaitJobRaw simply returns the job object.
New trigger type was addded in this PR: https://github.com/UiPath/uipath-platform-python/pull/8

Development Package

• Use uipath pack --nolock to get the latest dev build from this PR (requires version range).
• Add this package as a dependency in your pyproject.toml:

[project]
dependencies = [
  # Exact version:
  "uipath-langchain==0.7.8.dev1006353128",

  # Any version from PR
  "uipath-langchain>=0.7.8.dev1006350000,<0.7.8.dev1006360000"
]

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

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

[tool.uv]
override-dependencies = [
    "uipath-langchain>=0.7.8.dev1006350000,<0.7.8.dev1006360000",
]