Bump to upstream version v0.15.6

[github-actions]

Update upstream version

Bump Dockerfile to upstream version v0.15.6

changed lines [19] of file "/tmp/updatecli/github/rancher/image-build-node-feature-discovery/Dockerfile"

v0.15.5

Release published on the 2024-07-05 05:38:54 +0000 UTC at the url https://github.com/kubernetes-sigs/node-feature-discovery/releases/tag/v0.15.5

## Changelog

This patch release fixes nfd-topology-updater on IPv6 clusters.

### List of PRs

- go.mod: update dependencies (#1676)
- topology-updater: properly handle IPv6 from NODE_ADDRESS (#1732)

v0.15.6

Release published on the 2024-07-10 13:42:46 +0000 UTC at the url https://github.com/kubernetes-sigs/node-feature-discovery/releases/tag/v0.15.6

## What's Changed
* Use worker DS OwnerReference for NF's by @ArangoGutierrez in https://github.com/kubernetes-sigs/node-feature-discovery/pull/1775


**Full Changelog**: https://github.com/kubernetes-sigs/node-feature-discovery/compare/v0.15.5...v0.15.6

v0.16.1

Release published on the 2024-07-03 14:45:13 +0000 UTC at the url https://github.com/kubernetes-sigs/node-feature-discovery/releases/tag/v0.16.1

## What's Changed
* [release-0.16] Revert "build(deps): bump actions/checkout from 1 to 4" by @k8s-infra-cherrypick-robot in https://github.com/kubernetes-sigs/node-feature-discovery/pull/1721
* [release-0.16] topology-updater: properly handle IPv6 from NODE_ADDRESS by @k8s-infra-cherrypick-robot in https://github.com/kubernetes-sigs/node-feature-discovery/pull/1731
* [release-0.16] helm: remove defaults CPU limits by @k8s-infra-cherrypick-robot in https://github.com/kubernetes-sigs/node-feature-discovery/pull/1736
* [release-0.16] Fix the problem with starting the master with empty cache by @k8s-infra-cherrypick-robot in https://github.com/kubernetes-sigs/node-feature-discovery/pull/1740
* [release-0.16] ensure post-delete-job's service account matches ref in job spec by @k8s-infra-cherrypick-robot in https://github.com/kubernetes-sigs/node-feature-discovery/pull/1750


**Full Changelog**: https://github.com/kubernetes-sigs/node-feature-discovery/compare/v0.16.0...v0.16.1

Bump Makefile to upstream version v0.15.6

1 file(s) updated with "TAG := v0.15.6$$(BUILD_META)": * Makefile

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[mgfritch]

Replaced by #35