Upgrade to asciidoctor-extensions 1.0.0-alpha.16

Closes gh-44030

antora/package-lock.json

@@ -13,7 +13,7 @@
         "@springio/antora-extensions": "1.11.1",
         "@springio/antora-xref-extension": "1.0.0-alpha.4",
         "@springio/antora-zip-contents-collector-extension": "1.0.0-alpha.8",
-        "@springio/asciidoctor-extensions": "1.0.0-alpha.15",
+        "@springio/asciidoctor-extensions": "1.0.0-alpha.16",
         "patch-package": "^8.0.0"
       }
     },
@@ -388,9 +388,9 @@
       }
     },
     "node_modules/@springio/asciidoctor-extensions": {
-      "version": "1.0.0-alpha.15",
-      "resolved": "https://registry.npmjs.org/@springio/asciidoctor-extensions/-/asciidoctor-extensions-1.0.0-alpha.15.tgz",
-      "integrity": "sha512-ERSHVfty59wCZxRFPBwO6dbVjDdaOF96tHgRru0lcdbK3peA3cr48BsnkFmpTEnTxGqMRXoww2QtKFqi47Oj2w==",
+      "version": "1.0.0-alpha.16",
+      "resolved": "https://registry.npmjs.org/@springio/asciidoctor-extensions/-/asciidoctor-extensions-1.0.0-alpha.16.tgz",
+      "integrity": "sha512-xUoe3sNxvjbxKXNt2hvg2dtykZj8UKg1kEr4nNhXM3Cg2lbGYCPTU1ow8z4/cV5rIVd7cq28b+afsDZoV5gc1g==",
       "license": "ASL-2.0",
       "dependencies": {
         "js-yaml": "~4.1"

antora/package.json

@@ -11,7 +11,7 @@
     "@springio/antora-xref-extension": "1.0.0-alpha.4",
     "@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.15",
+    "@springio/asciidoctor-extensions": "1.0.0-alpha.16",
     "patch-package": "^8.0.0"
   },
   "config": {