✨ Fix deprecated things

[zchee]

Fix deprecated following:

• types.NewSignature -> types.NewSignatureType
• packages.LoadImports -> packages.NeedName | packages.NeedFiles | packages.NeedCompiledGoFiles | packages.NeedImports
• sets.String -> sets.Set[string]

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[k8s-ci-robot]

Hi @zchee. Thanks for your PR.

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[sbueringer]

/ok-to-test

[zchee]

@sbueringer

prow's error details are below, maybe not related my change?

testdata.kubebuilder.io/cronjob:-: conflicting types in allOf branches in schema: object vs string
          {
              Pos: "testdata.kubebuilder.io/cronjob:-",
              Msg: "conflicting types in allOf branches in schema: object vs string",

[sbueringer]

Not sure, seems unlikely, but who knows :)

Let's test it again

/retest

[sbueringer]

Looks like the test broke through this PR (I'm not aware of any flakes there)

[zchee]

@sbueringer Thanks! Okay, I'll dig failed test case...

[zchee]

@sbueringer Fixed. PTALA.

[joelanford]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 9b4d9cb542d230db466af2ffa885bdefab67b506

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alvaroaleman, zchee

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