Upload the target directory (#1195)

This allows viewing what was built

Author: rwinch

.github/workflows/deploy-docs.yml

@@ -36,6 +36,11 @@ jobs:
           ./mvnw antora
       - name: Copy the cache to be included in the site
         run: cp -rf build/antora/inject-collector-cache-config-extension/.cache build/site/
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4 # Use the latest version
+        with:
+          name: target
+          path: target
       - name: Publish Docs
         uses: spring-io/spring-doc-actions/rsync-antora-reference@v0.0.20
         with: