Bump javadoc compilation gradle image to 6.8
diff --git a/site/docker-compose.yml b/site/docker-compose.yml
index 835c377..10db6b0 100644
--- a/site/docker-compose.yml
+++ b/site/docker-compose.yml
@@ -29,7 +29,7 @@
volumes:
- .:/srv/jekyll
generate-javadoc:
- image: gradle:6.3
+ image: gradle:6.8
working_dir: /usr/src/calcite-avatica
command: sh -c "gradle javadocAggregate; rm -rf site/target/avatica/javadocAggregate; mkdir -p site/target/avatica; mv build/docs/javadocAggregate site/target/avatica"
volumes: