Fix ESM module import to use dynamic import

packages/snaps-utils/src/eval-worker.ts

@@ -1,43 +1,49 @@
-// eslint-disable-next-line import/no-unassigned-import
-import 'ses/lockdown';
-
 import { readFileSync } from 'fs';
 
 import type { HandlerType } from './handler-types';
 import { SNAP_EXPORT_NAMES } from './handler-types';
 import { generateMockEndowments } from './mock';
 
-declare let lockdown: any, Compartment: any;
-
-lockdown({
-  consoleTaming: 'unsafe',
-  errorTaming: 'unsafe',
-  mathTaming: 'unsafe',
-  dateTaming: 'unsafe',
-  overrideTaming: 'severe',
-
-  // We disable domain taming, because it does not work in certain cases when
-  // running tests. This is unlikely to be a problem in production, because
-  // Node.js domains are deprecated.
-  domainTaming: 'unsafe',
-});
+import('ses/lockdown')
+  .then(() =>
+    lockdown({
+      consoleTaming: 'unsafe',
+      errorTaming: 'unsafe',
+      mathTaming: 'unsafe',
+      dateTaming: 'unsafe',
+      overrideTaming: 'severe',
+
+      // We disable domain taming, because it does not work in certain cases when
+      // running tests. This is unlikely to be a problem in production, because
+      // Node.js domains are deprecated.
+      domainTaming: 'unsafe',
+    }),
+  )
+  .catch((error) => {
+    throw error;
+  });
 
 const snapFilePath = process.argv[2];
 
 const snapModule: { exports?: any } = { exports: {} };
 
-const compartment = new Compartment({
-  ...generateMockEndowments(),
-  module: snapModule,
-  exports: snapModule.exports,
-});
-
-// Mirror BaseSnapExecutor
-compartment.globalThis.self = compartment.globalThis;
-compartment.globalThis.global = compartment.globalThis;
-compartment.globalThis.window = compartment.globalThis;
-
-compartment.evaluate(readFileSync(snapFilePath, 'utf8'));
+import('ses/lockdown')
+  .then(() => {
+    const compartment = new Compartment({
+      ...generateMockEndowments(),
+      module: snapModule,
+      exports: snapModule.exports,
+    });
+    // Mirror BaseSnapExecutor
+    compartment.globalThis.self = compartment.globalThis;
+    compartment.globalThis.global = compartment.globalThis;
+    compartment.globalThis.window = compartment.globalThis;
+
+    compartment.evaluate(readFileSync(snapFilePath, 'utf8'));
+  })
+  .catch((error) => {
+    throw error;
+  });
 
 const invalidExports = Object.keys(snapModule.exports).filter(
   (snapExport) => !SNAP_EXPORT_NAMES.includes(snapExport as HandlerType),