Bump hadolint version to 2.15.1

[github-actions]

Bump hadolint version

Update the `hadolint` version in the tools/hadolint script

1 file(s) updated with "ghcr.io/hadolint/hadolint:v2.15.1-debian": * tools/hadolint

v2.15.1

## What's Changed
* CI: Fix Macos Cache and image name by @m-ildefons in https://github.com/hadolint/hadolint/pull/1225
* DL3066: Fix false positive when UID is an argument by @m-ildefons in https://github.com/hadolint/hadolint/pull/1226


**Full Changelog**: https://github.com/hadolint/hadolint/compare/v2.15.0...v2.15.1

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[MarkEWaite]

I've submitted an issue report to hadolint for the Windows line continuation issue.

• 2.15.0 runs Shellcheck on non-Bash shells (like Powershell) hadolint/hadolint#1228