fix: re-enable sqlserverflex flavor (#108)

## Description

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relates to #1234

## Checklist

- [ ] Issue was linked above
- [ ] Code format was applied: `make fmt`
- [ ] Examples were added / adjusted (see `examples/` directory)
- [x] Docs are up-to-date: `make generate-docs` (will be checked by CI)
- [ ] Unit tests got implemented or updated
- [ ] Acceptance tests got implemented or updated (see e.g. [here](f5f99d1709/stackit/internal/services/dns/dns_acc_test.go))
- [x] Unit tests are passing: `make test` (will be checked by CI)
- [x] No linter issues: `make lint` (will be checked by CI)

Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Reviewed-on: #108

stackit/provider.go

@@ -19,6 +19,7 @@ import (
 	"github.com/hashicorp/terraform-plugin-log/tflog"
 	sdkauth "github.com/stackitcloud/stackit-sdk-go/core/auth"
 	"github.com/stackitcloud/stackit-sdk-go/core/config"
+	sqlserverFlexBetaFlavor "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexbeta/flavor"
 
 	//sqlserverflexalphaDatabase "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexalpha/database"
 	//sqlserverflexalphaInstance "tf-provider.git.onstackit.cloud/stackit-dev-tools/terraform-provider-stackitprivatepreview/stackit/internal/services/sqlserverflexalpha/instance"
@@ -542,7 +543,7 @@ func (p *Provider) DataSources(_ context.Context) []func() datasource.DataSource
 		sqlserverFlexBetaDatabase.NewDatabaseDataSource,
 		sqlserverflexBetaInstance.NewInstanceDataSource,
 		sqlserverflexbetaUser.NewUserDataSource,
-		// sqlserverFlexBetaFlavor.NewFlavorDataSource,
+		sqlserverFlexBetaFlavor.NewFlavorDataSource,
 	}
 }