App Platform: Remove mutable globals (#102962)

* App Platform: Remove mutable globals

* chore: clarify why this exists

* fix: support multi-tenant mode

* refactor: call builder providers directly

* CI: Force re-build

pkg/tests/apis/provisioning/helper_test.go

@@ -28,7 +28,6 @@ import (
 	provisioning "github.com/grafana/grafana/pkg/apis/provisioning/v0alpha1"
 	grafanarest "github.com/grafana/grafana/pkg/apiserver/rest"
 	"github.com/grafana/grafana/pkg/registry/apis/provisioning/jobs"
-	"github.com/grafana/grafana/pkg/services/apiserver"
 	"github.com/grafana/grafana/pkg/services/featuremgmt"
 	"github.com/grafana/grafana/pkg/setting"
 	"github.com/grafana/grafana/pkg/tests/apis"
@@ -189,8 +188,6 @@ func withLogs(opts *testinfra.GrafanaOpts) {
 }
 
 func runGrafana(t *testing.T, options ...grafanaOption) *provisioningTestHelper {
-	apiserver.ClearRestConfig()
-
 	provisioningPath := t.TempDir()
 	opts := testinfra.GrafanaOpts{
 		AppModeProduction: false, // required for experimental APIs