Update to 6.8.21

Author: docker-library-bot

6/Dockerfile

@@ -1,14 +1,14 @@
-# Elasticsearch 6.8.20
+# Elasticsearch 6.8.21
 
 # This image re-bundles the Docker image from the upstream provider, Elastic.
-FROM docker.elastic.co/elasticsearch/elasticsearch:6.8.20@sha256:4fd66b507ba199cbddb4d34019a7f716d15f85a69757eee017bf6323950c25b2
+FROM docker.elastic.co/elasticsearch/elasticsearch:6.8.21@sha256:a2515ad7b25fb05fec667ad562a07a633fbece9177db84267a1a594f6b732a11
 # Supported Bashbrew Architectures: amd64
 
 # The upstream image was built by:
-#   https://github.com/elastic/dockerfiles/tree/v6.8.20/elasticsearch
+#   https://github.com/elastic/dockerfiles/tree/v6.8.21/elasticsearch
 
 # The build can be reproduced locally via:
-#   docker build 'https://github.com/elastic/dockerfiles.git#v6.8.20:elasticsearch'
+#   docker build 'https://github.com/elastic/dockerfiles.git#v6.8.21:elasticsearch'
 
 # For a full list of supported images and tags visit https://www.docker.elastic.co