🌱 Bump k8s.io/code-generator in /hack/tools

Bumps [k8s.io/code-generator](https://github.com/kubernetes/code-generator) from 0.26.4 to 0.26.6.
- [Commits](kubernetes/code-generator@v0.26.4...v0.26.6)

---
updated-dependencies:
- dependency-name: k8s.io/code-generator
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

hack/tools/go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/joelanford/go-apidiff v0.6.0
 	github.com/onsi/ginkgo/v2 v2.9.2
 	github.com/vmware/govmomi v0.30.4
-	k8s.io/code-generator v0.26.4
+	k8s.io/code-generator v0.26.6
 	sigs.k8s.io/cluster-api/hack/tools v0.0.0-20211104153216-fb1f86267fed
 	sigs.k8s.io/controller-runtime/tools/setup-envtest v0.0.0-20211110210527-619e6b92dab9
 	sigs.k8s.io/controller-tools v0.11.4

hack/tools/go.sum

@@ -1303,8 +1303,8 @@ k8s.io/apimachinery v0.26.1/go.mod h1:tnPmbONNJ7ByJNz9+n9kMjNP8ON+1qoAIIC70lztu7
 k8s.io/apiserver v0.22.2/go.mod h1:vrpMmbyjWrgdyOvZTSpsusQq5iigKNWv9o9KlDAbBHI=
 k8s.io/client-go v0.22.2/go.mod h1:sAlhrkVDf50ZHx6z4K0S40wISNTarf1r800F+RlCF6U=
 k8s.io/code-generator v0.22.2/go.mod h1:eV77Y09IopzeXOJzndrDyCI88UBok2h6WxAlBwpxa+o=
-k8s.io/code-generator v0.26.4 h1:zgDD0qX13p/jtrAoYRRiYeQ5ibnriwmo2cMkMZAtJxc=
-k8s.io/code-generator v0.26.4/go.mod h1:ryaiIKwfxEJEaywEzx3dhWOydpVctKYbqLajJf0O8dI=
+k8s.io/code-generator v0.26.6 h1:8dkbwSytMeJU/sQeBX+R64bqpocSC44fHANml/kOxzY=
+k8s.io/code-generator v0.26.6/go.mod h1:iWTVFxfBX+RYe0bXjKqSM83KJF8eimor/izQInvq/60=
 k8s.io/component-base v0.22.2/go.mod h1:5Br2QhI9OTe79p+TzPe9JKNQYvEKbq9rTJDWllunGug=
 k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
 k8s.io/gengo v0.0.0-20201214224949-b6c5ce23f027/go.mod h1:FiNAH4ZV3gBg2Kwh89tzAEV2be7d5xI0vBa/VySYy3E=