Update labels.go to also check for user_labels

[mikaelm12]

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[NickElliot]

to @zli82016 as it pertains to the labels update

[zli82016]

@mikaelm12 , I wonder what is the reason to check for user_labels.

The function SetLabelsDiff is only added as the CustomizeDiff to the resource with labels field and not added to the resource with user_labels field.

[zli82016]

@mikaelm12 , do you have any questions before I closing this PR? Which resources do you expect to apply the function SetLabelsDiff?

[rileykarson]

Hey! I'm closing this PR as a part of a cleanup of older inactive PRs, using a threshold of PRs in "Draft" last updated over a month ago. This doesn't represent rejection of the change, and feel free to comment for me to reopen it if you plan to pick it back up, or feel free to start a new PR with the same changes in the future.