Add Validator to check OS & Capacity Reservation Platform match

[himani2411]

Description of changes

• Add Validator to check OS Capacity Reservation Platform match

Tests

• Unit Tests and manual tests

{
  "configurationValidationErrors": [
    {
      "level": "ERROR",
      "type": "CapacityReservationValidator",
      "message": "Capacity reservation cr-003991131305dd2c3 has platform Linux/UNIX, which is not compatible with the cluster OS rhel9. Please use a reservation with platform Red Hat Enterprise Linux."
    },

References

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