[bug]: Support helm depBuild flags for helm deploys

pkg/skaffold/deploy/helm/helm.go

@@ -562,7 +562,10 @@ func (h *Deployer) deployRelease(ctx context.Context, out io.Writer, releaseName
 	if !r.SkipBuildDependencies && r.ChartPath != "" {
 		olog.Entry(ctx).Info("Building helm dependencies...")
 
-		if err := helm.Exec(ctx, h, out, false, nil, "dep", "build", r.ChartPath); err != nil {
+		args := []string{"dep", "build", r.ChartPath}
+		args = append(args, h.Flags.DepBuild...)
+
+		if err := helm.Exec(ctx, h, out, false, nil, args...); err != nil {
 			return nil, nil, helm.UserErr("building helm dependencies", err)
 		}
 	}

pkg/skaffold/deploy/helm/helm_test.go

@@ -350,6 +350,16 @@ var testDeployChartWithUseHelmSecrets = latest.LegacyHelmDeploy{
 	}},
 }
 
+var testDeployWithDepBuild = latest.LegacyHelmDeploy{
+	Releases: []latest.HelmRelease{{
+		Name:      "skaffold-helm",
+		ChartPath: "examples/test",
+	}},
+	Flags: latest.HelmDeployFlags{
+		DepBuild: []string{"--debug"},
+	},
+}
+
 var validDeployYaml = `
 # Source: skaffold-helm/templates/deployment.yaml
 apiVersion: apps/v1
@@ -1068,6 +1078,19 @@ func TestHelmDeploy(t *testing.T) {
 			builds:             testBuilds,
 			expectedNamespaces: []string{"testReleaseNamespace"},
 		},
+		{
+			description: "helm3.2 dep build with debug",
+			commands: testutil.
+				CmdRunWithOutput("helm version --client", version32).
+				AndRun("helm --kube-context kubecontext get all skaffold-helm --kubeconfig kubeconfig").
+				AndRun("helm --kube-context kubecontext dep build examples/test --debug --kubeconfig kubeconfig").
+				AndRunEnv("helm --kube-context kubecontext upgrade skaffold-helm examples/test --post-renderer SKAFFOLD-BINARY --kubeconfig kubeconfig",
+					[]string{"SKAFFOLD_FILENAME=test.yaml", "SKAFFOLD_CMDLINE=filter --kube-context kubecontext --build-artifacts TMPFILE --kubeconfig kubeconfig"}).
+				AndRunWithOutput("helm --kube-context kubecontext get all skaffold-helm --template {{.Release.Manifest}} --kubeconfig kubeconfig", validDeployYaml),
+			helm:               testDeployWithDepBuild,
+			builds:             testBuilds,
+			expectedNamespaces: []string{""},
+		},
 	}
 
 	for _, test := range tests {