Correct order of setting scheduler pool attributes

[achulkov2]

When changing max_operation_count and max_running_operation_count you have to increase and decrease them in the correct order. Otherwise, you can get errors like these when trying to increase both values:

│ Could not set node "#8fe-16bcc-135303e9-5d18bd1a/@max_running_operation_count" to '1000', unexpected error: "call c7a0f7db-f3eae0b2-6f44ad2e-d3e7f677 failed: error setting builtin
│ attribute \"max_running_operation_count\": \"max_operation_count\" must be greater than or equal to \"max_running_operation_count\", but 100 < 1000"