chore: resolve prefer-const lint error

Author: mrstork

eslint_temporary_suppressions.js

@@ -80,12 +80,6 @@ export default [
   },
 
   /* Per-file rule suppressions */
-  {
-    files: ['packages/cache/src/fetchwithcache.test.ts'],
-    rules: {
-      'prefer-const': 'off',
-    },
-  },
   {
     files: ['packages/functions/dev/main.ts'],
     rules: {

packages/cache/src/fetchwithcache.test.ts

@@ -10,7 +10,7 @@ const host = 'host.netlify'
 const url = 'https://example.netlify/.netlify/cache'
 const token = 'mock-token'
 
-let originalCaches = globalThis.caches
+const originalCaches = globalThis.caches
 
 beforeEach(async () => {
   globalThis.caches = new NetlifyCacheStorage({