[DynInst_API:] [dyninst/dyninst] 095af7: Use external-tests instead of testsuite in base image

[noreply@xxxxxxxxxx]

  Branch: refs/heads/thaines/docker_replace_tests
  Home:   https://github.com/dyninst/dyninst
  Commit: 095af78c7cacf7efad5190d47c71a756b36818e8
      https://github.com/dyninst/dyninst/commit/095af78c7cacf7efad5190d47c71a756b36818e8
  Author: Tim Haines <thaines.astro@xxxxxxxxx>
  Date:   2022-03-03 (Thu, 03 Mar 2022)

  Changed paths:
    M docker/Dockerfile
    M docker/Dockerfile.test
    M docker/build.sh
    R docker/test.sh

  Log Message:
  -----------
  Use external-tests instead of testsuite in base image

We want to use -Werror to catch any warnings introduced by code changes.
However, the test suite isn't ready to be built that way, so we use the
external-tests instead.