bump KKP dependency, replace packngo with Equinix Metal SDK

[xrstf]

What this PR does / why we need it:
This updates the KKP dependency and applies the packngo->EquinixSDK replacement we did in KKP backend and machine-controller.

Which issue(s) this PR fixes:
Fixes kubermatic/kubermatic#13631

What type of PR is this?
/kind chore

Does this PR introduce a user-facing change? Then add your Release Note here:

Use official Equinix SDK instead of deprecated packethost/packngo.

Documentation:

NONE

[kubermatic-bot]

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[xrstf]

/retest

[kubermatic-bot]

@xrstf: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pre-dashboard-api-verify	f521c2c	link	true	/test pre-dashboard-api-verify
pre-dashboard-api-unit	f521c2c	link	true	/test pre-dashboard-api-unit

Full PR test history

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