build(deps): bump github.com/tinkerbell/tinkerbell/api

Bumps [github.com/tinkerbell/tinkerbell/api](https://github.com/tinkerbell/tinkerbell) from 0.20.1 to 0.21.0.
- [Release notes](https://github.com/tinkerbell/tinkerbell/releases)
- [Commits](tinkerbell/tinkerbell@v0.20.1...v0.21.0)

---
updated-dependencies:
- dependency-name: github.com/tinkerbell/tinkerbell/api
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -10,7 +10,7 @@ require (
 	github.com/onsi/gomega v1.38.2
 	github.com/rs/zerolog v1.34.0
 	github.com/spf13/pflag v1.0.10
-	github.com/tinkerbell/tinkerbell/api v0.20.1
+	github.com/tinkerbell/tinkerbell/api v0.21.0
 	k8s.io/api v0.33.3
 	k8s.io/apimachinery v0.33.3
 	k8s.io/client-go v0.33.3

go.sum

@@ -165,8 +165,8 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/tinkerbell/tinkerbell/api v0.20.1 h1:YrNnZgh+iXc5yUPivzBReroBA2JIb70Yw/Msq0tidYc=
-github.com/tinkerbell/tinkerbell/api v0.20.1/go.mod h1:S1DVHOyJ3FjthCv9iDURC3rVrRgh4jOLbohocJUbxMU=
+github.com/tinkerbell/tinkerbell/api v0.21.0 h1:51RfGVH2hQqdmpn95xZw4O7yfyfv8/P6Z96FOy6Jrv0=
+github.com/tinkerbell/tinkerbell/api v0.21.0/go.mod h1:S1DVHOyJ3FjthCv9iDURC3rVrRgh4jOLbohocJUbxMU=
 github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=