Use Helm's schema validation skipping feature

This relies on Helm's functionality instead of manipulating chart data
when schema validation is to be skipped.
This should work from Helm 3.16 onwards.

internal/helmdeployer/install.go

@@ -53,12 +53,6 @@ func (h *Helm) Deploy(ctx context.Context, bundleID string, manifest *manifest.M
 		chart.Metadata.Annotations[CommitAnnotation] = manifest.Commit
 	}
 
-	if options.Helm.SkipSchemaValidation {
-		// TODO: instead of manipulating the chart object, use helm's own functionality when it's available:
-		//       https://github.com/helm/helm/pull/11510
-		chart.Schema = nil
-	}
-
 	if resources, err := h.install(ctx, bundleID, manifest, chart, options, true); err != nil {
 		return nil, err
 	} else if h.template {
@@ -144,6 +138,7 @@ func (h *Helm) install(ctx context.Context, bundleID string, manifest *manifest.
 		u.Namespace = defaultNamespace
 		u.Timeout = timeout
 		u.DryRun = dryRun
+		u.SkipSchemaValidation = options.Helm.SkipSchemaValidation
 		u.PostRenderer = pr
 		u.WaitForJobs = options.Helm.WaitForJobs
 		if u.Timeout > 0 {
@@ -170,6 +165,7 @@ func (h *Helm) install(ctx context.Context, bundleID string, manifest *manifest.
 	u.Namespace = defaultNamespace
 	u.Timeout = timeout
 	u.DryRun = dryRun
+	u.SkipSchemaValidation = options.Helm.SkipSchemaValidation
 	u.DisableOpenAPIValidation = h.template || dryRun
 	u.PostRenderer = pr
 	u.WaitForJobs = options.Helm.WaitForJobs