feat: api v2beta to api v2 (#8283)

# Which Problems Are Solved

The v2beta services are stable but not GA.

# How the Problems Are Solved

The v2beta services are copied to v2. The corresponding v1 and v2beta
services are deprecated.

# Additional Context

Closes #7236

---------

Co-authored-by: Elio Bischof <[email protected]>

internal/api/grpc/settings/v2beta/server_integration_test.go

@@ -0,0 +1,34 @@
+//go:build integration
+
+package settings_test
+
+import (
+	"context"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/zitadel/zitadel/internal/integration"
+	settings "github.com/zitadel/zitadel/pkg/grpc/settings/v2beta"
+)
+
+var (
+	CTX, AdminCTX context.Context
+	Tester        *integration.Tester
+	Client        settings.SettingsServiceClient
+)
+
+func TestMain(m *testing.M) {
+	os.Exit(func() int {
+		ctx, _, cancel := integration.Contexts(3 * time.Minute)
+		defer cancel()
+
+		Tester = integration.NewTester(ctx)
+		defer Tester.Done()
+
+		CTX = ctx
+		AdminCTX = Tester.WithAuthorization(ctx, integration.IAMOwner)
+		Client = Tester.Client.SettingsV2beta
+		return m.Run()
+	}())
+}