chore(deps): update coredns/coredns docker tag to v1.12.1

This MR contains the following updates:

Package	Type	Update	Change
coredns/coredns	Kustomization	minor	1.11.4 -> 1.12.1

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Release Notes

coredns/coredns (coredns/coredns)

v1.12.1

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In this release:

• kubernetes: Revert recent change to only create PTR records for endpoints with hostname defined.
• forward: added option to return SERVFAIL immediately if all upstreams are unhealthy.

Brought to You By

Adrian Moisey, Arthur Outhenin-Chalandre, Bartosz Borkowski, Ben Kochie, Chris O'Haver, Min Woo Kim, Puneet Loya, Rich, Viktor, momantech

Noteworthy Changes

• core: Increase CNAME lookup limit from 7 to 10 (https://github.com/coredns/coredns/pull/7153)
• plugin/kubernetes: Fix handling of pods having DeletionTimestamp set (https://github.com/coredns/coredns/pull/7119) (#​7131)
• plugin/kubernetes: Revert "only create PTR records for endpoints with hostname defined (https://github.com/coredns/coredns/pull/6898)" (#​7194)
• plugin/forward: added option failfast_all_unhealthy_upstreams to return servfail if all upstreams are down (https://github.com/coredns/coredns/pull/6999)

v1.12.0

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This release adds a new feature:

• New multisocket plugin - allows CoreDNS to listen on multiple sockets

Brought to You By

Ben Kochie, Chris O'Haver, Emmanuel Ferdman, Viktor

Noteworthy Changes

• plugin/multisocket (https://github.com/coredns/coredns/pull/6882)

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