adding updateVlanIpRange

[poddm]

Adding updateVlanIpRange to generator.

• https://cloudstack.apache.org/api/apidocs-4.18/apis/updateVlanIpRange.html

[DaanHoogland]

according to https://github.com/apache/cloudstack-go/actions/runs/7012770058/job/19085665052?pr=75#step:6:943 this is not tested in the H action.
Code looks good but that test needs fixing. Do you care to take the time @poddm ?

[poddm]

@DaanHoogland, updated test data for createVlanIpRange, updateVlanIpRange, listVlanIpRanges and deleteVlanIpRange.

$ /opt/homebrew/bin/go test -timeout 30s -run ^TestVLANService$ github.com/apache/cloudstack-go/v2/test -v
=== RUN   TestVLANService
=== RUN   TestVLANService/CreateVlanIpRange
=== RUN   TestVLANService/DedicateGuestVlanRange
=== RUN   TestVLANService/DeleteVlanIpRange
=== RUN   TestVLANService/ListDedicatedGuestVlanRanges
    VLANService_test.go:82: Skipping as no json response is provided in testdata
=== RUN   TestVLANService/ListVlanIpRanges
=== RUN   TestVLANService/ReleaseDedicatedGuestVlanRange
    VLANService_test.go:106: Skipping as no json response is provided in testdata
=== RUN   TestVLANService/ListGuestVlans
    VLANService_test.go:118: Skipping as no json response is provided in testdata
=== RUN   TestVLANService/UpdateVlanIpRange
--- PASS: TestVLANService (0.00s)
    --- PASS: TestVLANService/CreateVlanIpRange (0.00s)
    --- PASS: TestVLANService/DedicateGuestVlanRange (0.00s)
    --- PASS: TestVLANService/DeleteVlanIpRange (0.00s)
    --- SKIP: TestVLANService/ListDedicatedGuestVlanRanges (0.00s)
    --- PASS: TestVLANService/ListVlanIpRanges (0.00s)
    --- SKIP: TestVLANService/ReleaseDedicatedGuestVlanRange (0.00s)
    --- SKIP: TestVLANService/ListGuestVlans (0.00s)
    --- PASS: TestVLANService/UpdateVlanIpRange (0.00s)
PASS
ok      github.com/apache/cloudstack-go/v2/test 0.455s

[DaanHoogland]

clgtm

[DaanHoogland]

@harikrishna-patnala can you have a look?

[harikrishna-patnala]

Code LGTM