chore(ske): switch to new SDK structure

relates to STACKITTPR-579

Author: marceljk

go.mod

@@ -41,7 +41,7 @@ require (
 	github.com/stackitcloud/stackit-sdk-go/services/serviceaccount v0.12.0
 	github.com/stackitcloud/stackit-sdk-go/services/serviceenablement v1.4.1
 	github.com/stackitcloud/stackit-sdk-go/services/sfs v0.6.3
-	github.com/stackitcloud/stackit-sdk-go/services/ske v1.7.0
+	github.com/stackitcloud/stackit-sdk-go/services/ske v1.12.0
 	github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex v1.6.1
 	github.com/teambition/rrule-go v1.8.2
 	golang.org/x/mod v0.34.0

go.sum

@@ -728,8 +728,8 @@ github.com/stackitcloud/stackit-sdk-go/services/serviceenablement v1.4.1 h1:HZnZ
 github.com/stackitcloud/stackit-sdk-go/services/serviceenablement v1.4.1/go.mod h1:wBxlGcNeQPIh1aS4xYqJuN2z6haSHRwzne6drN5ROfM=
 github.com/stackitcloud/stackit-sdk-go/services/sfs v0.6.3 h1:LEdPJ6f9pbrft+HlIIzRcCQog58b7UKVm4ObiOH8H4o=
 github.com/stackitcloud/stackit-sdk-go/services/sfs v0.6.3/go.mod h1:qO2+XOzLy9rRTDo3IvXJd4uZsl6d1npa2cyQvaY4/Fw=
-github.com/stackitcloud/stackit-sdk-go/services/ske v1.7.0 h1:l1QjxW7sdE/6B6BZtHxbmus8XJdI9KDuXX3fwUa5fog=
-github.com/stackitcloud/stackit-sdk-go/services/ske v1.7.0/go.mod h1:1Jr+ImrmPERxbYnlTy6O2aSZYNnREf2qQyysv6YC1RY=
+github.com/stackitcloud/stackit-sdk-go/services/ske v1.12.0 h1:G6iUFDlrwCkCkwSV3eLNsFpVD24h6qV7D4pm0rqftnM=
+github.com/stackitcloud/stackit-sdk-go/services/ske v1.12.0/go.mod h1:cSRF2ARIB6dKmvZ12Z5h1usKQligeZJ1JOiJk6Ds3wE=
 github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex v1.6.1 h1:aUpKF2aF8WKsHawXPFnKsRlAcaHkRg6UL0sVjuQqB74=
 github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex v1.6.1/go.mod h1:1rYtgXQWSv0ykMZ6p7vXcmccGcwR37omNh9FMKLNwck=
 github.com/stbenjam/no-sprintf-host-port v0.3.1 h1:AyX7+dxI4IdLBPtDbsGAyqiTSLpCP9hWRrXQDU4Cm/g=

stackit/internal/services/ske/cluster/datasource.go

@@ -15,7 +15,7 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
 	"github.com/hashicorp/terraform-plugin-framework/types"
 	"github.com/hashicorp/terraform-plugin-log/tflog"
-	"github.com/stackitcloud/stackit-sdk-go/services/ske"
+	ske "github.com/stackitcloud/stackit-sdk-go/services/ske/v2api"
 
 	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/core"
 	"github.com/stackitcloud/terraform-provider-stackit/stackit/internal/utils"
@@ -351,7 +351,7 @@ func (r *clusterDataSource) Read(ctx context.Context, req datasource.ReadRequest
 	ctx = tflog.SetField(ctx, "project_id", projectId)
 	ctx = tflog.SetField(ctx, "name", name)
 	ctx = tflog.SetField(ctx, "region", region)
-	clusterResp, err := r.client.GetCluster(ctx, projectId, region, name).Execute()
+	clusterResp, err := r.client.DefaultAPI.GetCluster(ctx, projectId, region, name).Execute()
 	if err != nil {
 		utils.LogError(
 			ctx,