ElasticContainer: Upgrade V7_5 to elasticsearch 7.5.2

Upgrade elasticsearch-rest-client to 7.5.2, accordingly.

Change-Id: I39059811c2ae2167e41f9f3851446dbbde3cf1e4
1 file changed
tree: 68599cda91ea931cc6a62d4b214e0e33e1a073fa
  1. java/
  2. javatests/