chore(deps): bump github.com/gardener/gardener from 1.85.0 to 1.86.0

Bumps [github.com/gardener/gardener](https://github.com/gardener/gardener) from 1.85.0 to 1.86.0.
- [Release notes](https://github.com/gardener/gardener/releases)
- [Commits](gardener/gardener@v1.85.0...v1.86.0)

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

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

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/coreos/butane v0.19.0
 	github.com/coreos/go-systemd/v22 v22.5.0
 	github.com/gardener/etcd-druid/api v0.6.0
-	github.com/gardener/gardener v1.85.0
+	github.com/gardener/gardener v1.86.0
 	github.com/gardener/machine-controller-manager v0.50.1
 	github.com/go-logr/logr v1.3.0
 	github.com/imdario/mergo v0.3.16

go.sum

@@ -136,8 +136,8 @@ github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4
 github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/gardener/etcd-druid/api v0.6.0 h1:XVrH3i2Phxf5wPnqI/9UL5I7Rb4kC+XYqquEzdtRxKI=
 github.com/gardener/etcd-druid/api v0.6.0/go.mod h1:vaVjHhgtJ22MhGxedLJ175gTfSG4l7xnAtlR6P9wRic=
-github.com/gardener/gardener v1.85.0 h1:YzEcRkZn0ktmrrtZ2dNQDQDDodZ+jsNQGCu3nrB+C0c=
-github.com/gardener/gardener v1.85.0/go.mod h1:8eHlXs2EkaghrgQwK8qEiVw3dZGpNJaq+I9IkPpReA4=
+github.com/gardener/gardener v1.86.0 h1:r0DjNZbUc2F/feWDrySZ/AU/5LAr0LoKXdraFtPb6NQ=
+github.com/gardener/gardener v1.86.0/go.mod h1:8eHlXs2EkaghrgQwK8qEiVw3dZGpNJaq+I9IkPpReA4=
 github.com/gardener/hvpa-controller/api v0.5.0 h1:f4F3O7YUrenwh4S3TgPREPiB287JjjUiUL18OqPLyAA=
 github.com/gardener/hvpa-controller/api v0.5.0/go.mod h1:QQl3ELkCaki+8RhXl0FZMfvnm0WCGwGJlGmrxJj6lvM=
 github.com/gardener/machine-controller-manager v0.50.1 h1:lL2q0O+K6jkgYzHPz85wIc9MzASZaiDvLYnTxW7P5ws=