Fixed the error invalid memory address or nil pointer dereference for the column power_state in the table azure_compute_virtual_machine

[ParthaI]

Integration test logs

Logs

N/A

Example query results

Results

> select name, power_state from azure_compute_virtual_machine
+-----------------+-------------+
| name            | power_state |
+-----------------+-------------+
| tets-delete     | deallocated |
| test-power      | running     |
| turbottest95054 | running     |
+-----------------+-------------+