Upgrade to antora-zip-contents-collector-extension 1.0.0-alpha.8

Closes gh-40598

antora/package-lock.json

@@ -11,7 +11,7 @@
         "@asciidoctor/tabs": "1.0.0-beta.6",
         "@springio/antora-extensions": "1.8.2",
         "@springio/antora-xref-extension": "1.0.0-alpha.3",
-        "@springio/antora-zip-contents-collector-extension": "1.0.0-alpha.7",
+        "@springio/antora-zip-contents-collector-extension": "1.0.0-alpha.8",
         "@springio/asciidoctor-extensions": "1.0.0-alpha.10"
       }
     },
@@ -338,9 +338,9 @@
       }
     },
     "node_modules/@springio/antora-zip-contents-collector-extension": {
-      "version": "1.0.0-alpha.7",
-      "resolved": "https://registry.npmjs.org/@springio/antora-zip-contents-collector-extension/-/antora-zip-contents-collector-extension-1.0.0-alpha.7.tgz",
-      "integrity": "sha512-CRZcRO/KFM0yoMUK3/QZqt+r1fGE5TMw6zVDu87ZS/rYhDEFd83SGGhuShSN3WJUFzgKFjf+WgVRSfbLVfiQjQ==",
+      "version": "1.0.0-alpha.8",
+      "resolved": "https://registry.npmjs.org/@springio/antora-zip-contents-collector-extension/-/antora-zip-contents-collector-extension-1.0.0-alpha.8.tgz",
+      "integrity": "sha512-pp1hozg/UGQpkrJ17NImrcRd5b8hxIsLXHDYeBBR/vtzR7uiokxA1JxtL6PTfPAdjnrYf+2ApXdCgzLdNI7Rgg==",
       "dependencies": {
         "@antora/expand-path-helper": "~2.0",
         "cache-directory": "~2.0",

antora/package.json

@@ -8,7 +8,7 @@
     "@antora/atlas-extension": "1.0.0-alpha.2",
     "@springio/antora-extensions": "1.8.2",
     "@springio/antora-xref-extension": "1.0.0-alpha.3",
-    "@springio/antora-zip-contents-collector-extension": "1.0.0-alpha.7",
+    "@springio/antora-zip-contents-collector-extension": "1.0.0-alpha.8",
     "@asciidoctor/tabs": "1.0.0-beta.6",
     "@springio/asciidoctor-extensions": "1.0.0-alpha.10"
   },