Bump Antora dependencies, add Antora caching.

.github/workflows/antora-site.yml

@@ -51,6 +51,11 @@ jobs:
       with:
         path: ~/.m2
         key: ${{ runner.os }}-maven
+    - name: Cache Antora
+      uses: actions/cache@v3
+      with:
+        path: ~/.cache
+        key: ${{ runner.os }}-antora-${{ github.event.inputs.module }}
     - name: Run Antora
       run: ./mvnw -B antora -Dspring-data.module=${{ github.event.inputs.module }}
 #    - name: Archive results

package.json

@@ -4,7 +4,7 @@
         "@antora/atlas-extension": "1.0.0-alpha.2",
         "@antora/collector-extension": "1.0.0-beta.1",
         "@asciidoctor/tabs": "1.0.0-beta.6",
-        "@springio/antora-extensions": "1.13.1",
+        "@springio/antora-extensions": "1.14.2",
         "@springio/asciidoctor-extensions": "1.0.0-alpha.12"
     }
 }