Fix import for integration test

[vish-cs]

No description provided.

[gemini-code-assist]

Code Review

This pull request simplifies the import setup in spanner_ingestion_test.py by appending the current directory to sys.path and importing cloud_workflow directly. Feedback suggests using os.path.abspath to ensure a robust absolute path is added to sys.path, which prevents potential import failures if the execution directory changes.

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[codacy-production]

Not up to standards ⛔

🔴 Issues 7 minor

Alerts:
⚠ 7 issues (≤ 0 issues of at least minor severity)

Results:
7 new issues

Category	Results
Documentation	7 minor

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🟢 Metrics 5 complexity · 0 duplication

Metric	Results
Complexity	5
Duplication	0

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