fix(pihole): gracefully avoid invalid request with wildcard

[MicahBird]

Description

This PR is simply following in the footsteps of @alex4108's work and utilizes SoftError rather than return nil.

Fixes #4622

Checklist

• Unit tests updated
• End user documentation updated

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: MicahBird / name: Micah Bird (86083c0, bfe8278, 5b72000, a1587f2, a5f3d84)

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[k8s-ci-robot]

Hi @MicahBird. Thanks for your PR.

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[mloiseleur]

Thanks @MicahBird 👍
A test is also needed, and after, we should be good to go.

[MicahBird]

Thanks @MicahBird 👍 A test is also needed, and after, we should be good to go.

Test added!

[mloiseleur]

/ok-to-test

[mloiseleur]

/retitle fix(pihole): gracefully avoid invalid request with wildcard

[MicahBird]

Apologies for the failed tests, this is my first time working with a Go project of this size, hopefully everything should be good to go now! 😅

[mloiseleur]

No problem. Thanks for taking the time to clean it 👍
/lgtm
/assign @Raffo

[mloiseleur]

Fixes #4621

[Raffo]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Raffo

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