TPT-4368: Update integration tests due to deprecated "vpcs" for NB create

[mawilk90]

📝 Description

Changes related to the fact that "vpcs" attribute is deprecated (but still valid) in favor of "backend_vpcs" in POST /nodebalancers

✔️ How to Test

Without fixtures:
go test -count=1 ./test/integration/ -v -run TestNodeBalancer_Create_With

With fixtures:
make test-int TEST_ARGS="-run TestNodeBalancer_Create_With"

[dawiddzhafarov]

LGTM and tests pass!

[Copilot]

Pull request overview

Updates Linodego integration tests/fixtures to account for the deprecation of the vpcs field on NodeBalancer create requests in favor of backend_vpcs, while also adding coverage to ensure the deprecated field remains accepted for now.

Changes:

• Updated NodeBalancer integration test setup helpers to send backend_vpcs instead of vpcs.
• Refreshed integration fixtures to match the new request payloads (backend_vpcs) and updated recorded responses.
• Added a new integration test + fixture to validate the deprecated vpcs create attribute is still accepted.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
test/integration/nodebalancers_test.go	Switches create options to BackendVPCs in helpers; adds a new test for deprecated VPCs usage.
test/integration/fixtures/TestNodeBalancer_Create_WithFrontendAndBackendInDifferentVPCs.yaml	Updates recorded POST body from vpcs to backend_vpcs (plus re-recorded fixture deltas).
test/integration/fixtures/TestNodeBalancer_Create_WithDeprecatedVPCsAttribute.yaml	New fixture for the deprecated vpcs attribute create path.
test/integration/fixtures/TestNodeBalancer_Create_WithBackendVPCOnly.yaml	Updates recorded POST body from vpcs to backend_vpcs (plus re-recorded fixture deltas).

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[ezilber-akamai]

I get this error:

    nodebalancers_test.go:143: 
                Error Trace:    /Users/ezilber/Projects/dx-devenv/repos/linodego/test/integration/nodebalancers_test.go:566
                                                        /Users/ezilber/Projects/dx-devenv/repos/linodego/test/integration/nodebalancers_test.go:143
                Error:          Received unexpected error:
                                [400] [type] User doesn't have permissions to add the requested type of NodeBalancer
                Test:           TestNodeBalancer_Create_WithFrontendVPCOnly
                Messages:       Error listing nodebalancers, expected struct, got error [400] [type] User doesn't have permissions to add the requested type of NodeBalancer

despite having (I think) all required customer tags on my account.

[mawilk90]

I get this error:

    nodebalancers_test.go:143: 
                Error Trace:    /Users/ezilber/Projects/dx-devenv/repos/linodego/test/integration/nodebalancers_test.go:566
                                                        /Users/ezilber/Projects/dx-devenv/repos/linodego/test/integration/nodebalancers_test.go:143
                Error:          Received unexpected error:
                                [400] [type] User doesn't have permissions to add the requested type of NodeBalancer
                Test:           TestNodeBalancer_Create_WithFrontendVPCOnly
                Messages:       Error listing nodebalancers, expected struct, got error [400] [type] User doesn't have permissions to add the requested type of NodeBalancer

despite having (I think) all required customer tags on my account.

Hi @ezilber-akamai , I have added you nb-frontend-vpc-ip-support tag so please try again and let me know if it works