adds UsePythonVersionV1

[dipidoo]

Context

UsePythonVersion@0 doesn't work with service connections. #21621

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Task Name

UsePythonVersionV1

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Description

UsePythonVersionV0 + using GitHub Service Connection instead of only token

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Risk Assessment (Low / Medium / High)

Low

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Change Behind Feature Flag (Yes / No)

No

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Tech Design / Approach

• Copy UsePythonVersionV0
• Copy GitHubReleaseV1's way of consuming service connection

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Documentation Changes Required (Yes/No)

• Some parameter documentations are updated

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Unit Tests Added or Updated (Yes / No)

Tests from UsePythonVersionV0 are kept

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Additional Testing Performed

Manual end-to-end with test org

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Logging Added/Updated (Yes/No)

No, same as UsePythonVersionV0

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Telemetry Added/Updated (Yes/No)

No, same as UsePythonVersionV0

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Rollback Scenario and Process (Yes/No)

• Rollback plan is documented.

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Dependency Impact Assessed and Regression Tested (Yes/No)

• All impacted internal modules, APIs, services, and third-party libraries are analyzed.
• Results are reviewed and confirmed to not break existing functionality.

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Checklist

• Related issue linked (if applicable)
• Task version was bumped — see versioning guide
• Verified the task behaves as expected