chore: bump github.com/stackitcloud/stackit-sdk-go/core

Bumps [github.com/stackitcloud/stackit-sdk-go/core](https://github.com/stackitcloud/stackit-sdk-go) from 0.26.0 to 0.27.0.
- [Release notes](https://github.com/stackitcloud/stackit-sdk-go/releases)
- [Changelog](https://github.com/stackitcloud/stackit-sdk-go/blob/main/CHANGELOG.md)
- [Commits](stackitcloud/stackit-sdk-go@core/v0.26.0...core/v0.27.0)

---
updated-dependencies:
- dependency-name: github.com/stackitcloud/stackit-sdk-go/core
  dependency-version: 0.27.0
  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/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	github.com/spf13/viper v1.21.0
-	github.com/stackitcloud/stackit-sdk-go/core v0.26.0
+	github.com/stackitcloud/stackit-sdk-go/core v0.27.0
 	github.com/stackitcloud/stackit-sdk-go/services/dns v0.22.1
 	github.com/stretchr/testify v1.12.1
 	go.uber.org/mock v0.6.0
@@ -65,7 +65,6 @@ require (
 	github.com/onsi/ginkgo/v2 v2.28.0 // indirect
 	github.com/onsi/gomega v1.39.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.4.3 // indirect
-	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/client_model v0.6.3 // indirect
 	github.com/prometheus/common v0.71.0 // indirect
 	github.com/prometheus/procfs v0.22.0 // indirect
@@ -81,19 +80,15 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.4 // indirect
 	go.yaml.in/yaml/v3 v3.0.5 // indirect
-	golang.org/x/mod v0.40.0 // indirect
 	golang.org/x/net v0.58.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
-	golang.org/x/sync v0.22.0 // indirect
 	golang.org/x/sys v0.47.0 // indirect
 	golang.org/x/term v0.45.0 // indirect
 	golang.org/x/text v0.41.0 // indirect
 	golang.org/x/time v0.15.0 // indirect
-	golang.org/x/tools v0.49.0 // indirect
 	google.golang.org/protobuf v1.36.12 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 	k8s.io/api v0.37.0 // indirect
 	k8s.io/apimachinery v0.37.0 // indirect
 	k8s.io/client-go v0.37.0 // indirect