Fix prometheus-elasticsearch-exporter container.

* Replace current URL with the proper target.

Change-Id: I0bb8b2429906e698858f6b699e4c4d8bacc2dd74
Closes-Bug: #1934763
(cherry picked from commit 1f8ac21)

Author: gtherond

docker/prometheus/prometheus-elasticsearch-exporter/Dockerfile.j2

@@ -10,7 +10,7 @@ ENV elasticsearch_exporter_version=1.1.0
 {% endblock %}
 
 {% block prometheus_elasticsearch_exporter_install %}
-RUN curl -sSL -o /tmp/elasticsearch_exporter.tar.gz https://github.com/justwatchcom/elasticsearch_exporter/releases/download/v${elasticsearch_exporter_version}/elasticsearch_exporter-${elasticsearch_exporter_version}.linux-{{debian_arch}}.tar.gz \
+RUN curl -sSL -o /tmp/elasticsearch_exporter.tar.gz https://github.com/prometheus-community/elasticsearch_exporter/releases/download/v${elasticsearch_exporter_version}/elasticsearch_exporter-${elasticsearch_exporter_version}.linux-{{debian_arch}}.tar.gz \
     && tar xvf /tmp/elasticsearch_exporter.tar.gz -C /opt/ \
     && rm -f /tmp/elasticsearch_exporter.tar.gz \
     && ln -s /opt/elasticsearch_exporter* /opt/elasticsearch_exporter