Bump github.com/gardener/gardener from 1.87.0 to 1.87.1

Bumps [github.com/gardener/gardener](https://github.com/gardener/gardener) from 1.87.0 to 1.87.1.
- [Release notes](https://github.com/gardener/gardener/releases)
- [Commits](gardener/gardener@v1.87.0...v1.87.1)

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

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

go.mod

@@ -5,7 +5,7 @@ go 1.21
 require (
 	github.com/ahmetb/gen-crd-api-reference-docs v0.3.0
 	github.com/gardener/cert-management v0.10.1
-	github.com/gardener/gardener v1.87.0
+	github.com/gardener/gardener v1.87.1
 	github.com/go-logr/logr v1.2.4
 	github.com/onsi/ginkgo/v2 v2.13.0
 	github.com/onsi/gomega v1.29.0

go.sum

@@ -133,8 +133,8 @@ github.com/gardener/cert-management v0.10.1 h1:Y4YYYEaW4SSwPL4OYOqn/HgMekKtSVQ6n
 github.com/gardener/cert-management v0.10.1/go.mod h1:STtKapgvQVb1gdzLAaBwYXsnlaYzgZXEiMYZO5wWXFE=
 github.com/gardener/etcd-druid v0.22.0 h1:DVe+Zjrb93r9vI1uUiCTMHBffIUoMAKhNzFZNC6hsQ8=
 github.com/gardener/etcd-druid v0.22.0/go.mod h1:FROhfVKyWBo4krlPe3R6FIhJRmOmijEWBdEeUP0CJjE=
-github.com/gardener/gardener v1.87.0 h1:aCZuGdQ5HS9u3xuVJsj2EpOJlcDtNqoNvzHaHTZgjtM=
-github.com/gardener/gardener v1.87.0/go.mod h1:MNqPkSxLD2w+HeIP56JnZbZtaqPnDb4hSRl3JWEZTWU=
+github.com/gardener/gardener v1.87.1 h1:TZ8I13CF7vZ0Z+9xD2504G/HjIn6k0aq+29xoNCojRY=
+github.com/gardener/gardener v1.87.1/go.mod h1:MNqPkSxLD2w+HeIP56JnZbZtaqPnDb4hSRl3JWEZTWU=
 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 v0.50.0 h1:3dcQjzueFU1TGgprV00adjb3OCR99myTBx8DQGxywks=