Merge branch 'stable-3.1'

* stable-3.1:
  Upgrade bazlets to latest stable-2.16 to build with 2.16.18 API
  Bump Bazel version to 3.1.0
  Align duct-tape and jna versions with testcontainers version
  Upgrade testcontainers to 1.14.1
  Upgrade testcontainers to 1.14.0
  Bump Bazel version to 3.0.0

Change-Id: I0e050be7d31eb3937ddf87d8ed3e903b2c7f07f1