feat: added operating_system for pools

[imprateeksh]

Description

Added changes to inlcude operating system for pools. Refer Issue-460

Release required?

• [x] No release
• [ ] Patch release (x.x.X)
• [ ] Minor release (x.X.x)
• [ ] Major release (X.x.x)

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• [ ] If relevant, a test for the change is included or updated with this PR.
• [ ] If relevant, documentation for the change is included or updated with this PR.

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[imprateeksh]

/run pipeline

[imprateeksh]

The changes are added in one single PR here