fix empty list template response

[FrancoisPoinsot]

When running spin pipeline-template list I was receiving an empty list
This is because the path of the request looked like that

/gate/v2/pipelineTemplates?scopes=%26%5B%5D

the charactere %26%5B%5D decodes to &[]
Technically we could say the issue comes from parameterToString in client.go, and that function should handle receiving a pointer to an array better.

But since this part is generated, here is a fix on the command layer.
To send an array instead of a pointer to an array

[spinnakerbot]

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• 8d8a21f: fix scope arg encoding

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<type>(<scope>): <subject>, e.g. fix(kubernetes): address NPE in status check

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[jasonmcintosh]

CLI could seriously use tests, but :) Looks like a good fix in this case ;)

[nandak522]

@jasonmcintosh Any idea when is 1.31 release going to happen ?