Update to stable GSS-TSIG API

[bodgit]

Description

(Disclaimer: I'm the maintainer of the GSS-TSIG package you're using)

I noticed you were using my package but you're using an old version before the API was stablised and the necessary changes were accepted upstream to the miekg/dns package.

So here's a PR that updates to the most stable version. I've also updated the miekg/dns package, however the release that contains the changes my package requires came one or two releases after they removed support for HMAC-MD5 TSIG signatures so it would affect any users of that algorithm, (although people really shouldn't be using it nowadays).

Thankfully my package also contains an identical HMAC implementation that still supports HMAC-MD5 so I've switched to using that. I also noticed you didn't accept HMAC-SHA224 or HMAC-SHA384 which are both supported algorithms so I permitted both of those too.

Checklist

• Unit tests updated
• End user documentation updated

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[seanmalloy]

/kind cleanup

[seanmalloy]

/lgtm
/assign @Raffo @njuettner

[Raffo]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bodgit, Raffo

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