chore(deps): Bump github.com/coreos/butane from 0.25.0 to 0.25.1

Bumps [github.com/coreos/butane](https://github.com/coreos/butane) from 0.25.0 to 0.25.1.
- [Release notes](https://github.com/coreos/butane/releases)
- [Changelog](https://github.com/coreos/butane/blob/main/docs/release-notes.md)
- [Commits](coreos/butane@v0.25.0...v0.25.1)

---
updated-dependencies:
- dependency-name: github.com/coreos/butane
  dependency-version: 0.25.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

go.mod

@@ -3,7 +3,7 @@ module github.com/rancher/cluster-api-provider-rke2
 go 1.24.0
 
 require (
-	github.com/coreos/butane v0.25.0
+	github.com/coreos/butane v0.25.1
 	github.com/coreos/ignition/v2 v2.23.0
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc
 	github.com/drone/envsubst/v2 v2.0.0-20210730161058-179042472c46

go.sum

@@ -52,8 +52,8 @@ github.com/coredns/caddy v1.1.1 h1:2eYKZT7i6yxIfGP3qLJoJ7HAsDJqYB+X68g4NYjSrE0=
 github.com/coredns/caddy v1.1.1/go.mod h1:A6ntJQlAWuQfFlsd9hvigKbo2WS0VUs2l1e2F+BawD4=
 github.com/coredns/corefile-migration v1.0.27 h1:WIIw5sU0LfGgoGnhdrYdVcto/aWmJoGA/C62iwkU0JM=
 github.com/coredns/corefile-migration v1.0.27/go.mod h1:56DPqONc3njpVPsdilEnfijCwNGC3/kTJLl7i7SPavY=
-github.com/coreos/butane v0.25.0 h1:hOedIb6hKLeahVjGOaDX6ri3CKeFTzCrfWbvZUrt0gQ=
-github.com/coreos/butane v0.25.0/go.mod h1:mLu58/AgW6lC116Rf/9N5b+ixj/zdhRtABBZjADHWFo=
+github.com/coreos/butane v0.25.1 h1:Nm2WDRD7h3f6GUpazGlge1o417Z+eIC9bQlkpgVdNms=
+github.com/coreos/butane v0.25.1/go.mod h1:N5JMWID5tmPsfsp3SR9w9xQk32rru8RDHSTerQiq8vI=
 github.com/coreos/go-json v0.0.0-20230131223807-18775e0fb4fb h1:rmqyI19j3Z/74bIRhuC59RB442rXUazKNueVpfJPxg4=
 github.com/coreos/go-json v0.0.0-20230131223807-18775e0fb4fb/go.mod h1:rcFZM3uxVvdyNmsAV2jopgPD1cs5SPWJWU5dOz2LUnw=
 github.com/coreos/go-semver v0.3.1 h1:yi21YpKnrx1gt5R+la8n5WgS0kCrsPp33dmEyHReZr4=