Update dependency archiver to v8

Author: renovate[bot]

packages/zip/package.json

@@ -24,7 +24,7 @@
   },
   "dependencies": {
     "@tryghost/errors": "workspace:*",
-    "archiver": "7.0.1",
+    "archiver": "8.0.0",
     "extract-zip": "2.0.1"
   },
   "devDependencies": {