fix: reduce size of terraform modules archive (#17749)

provisionerd/runner/runner.go

@@ -595,6 +595,7 @@ func (r *Runner) runTemplateImport(ctx context.Context) (*proto.CompletedJob, *p
 				StopModules:                stopProvision.Modules,
 				Presets:                    startProvision.Presets,
 				Plan:                       startProvision.Plan,
+				ModuleFiles:                startProvision.ModuleFiles,
 			},
 		},
 	}, nil
@@ -657,6 +658,7 @@ type templateImportProvision struct {
 	Modules               []*sdkproto.Module
 	Presets               []*sdkproto.Preset
 	Plan                  json.RawMessage
+	ModuleFiles           []byte
 }
 
 // Performs a dry-run provision when importing a template.
@@ -751,6 +753,7 @@ func (r *Runner) runTemplateImportProvisionWithRichParameters(
 				Modules:               c.Modules,
 				Presets:               c.Presets,
 				Plan:                  c.Plan,
+				ModuleFiles:           c.ModuleFiles,
 			}, nil
 		default:
 			return nil, xerrors.Errorf("invalid message type %q received from provisioner",