[tests] pin docker to <4.3.0 (#71192)

Change:
- New python docker lib wants a newer docker than we have in CI.

Test Plan:
- CI

Signed-off-by: Rick Elrod <rick@elrod.me>

test/integration/targets/setup_docker/defaults/main.yml

@@ -8,7 +8,7 @@ docker_packages:
 
 docker_pip_extra_packages: []
 docker_pip_packages:
-  - docker
+  - docker<4.3.0
 
 docker_cleanup_packages:
   - docker