[Build/CI] Update run-amd-test.sh. Enable Docker Hub login. (vllm-project#6711)

Signed-off-by: Alvant <[email protected]>

Author: Alexei-V-Ivanov-AMD

.buildkite/run-amd-test.sh

@@ -55,6 +55,7 @@ while true; do
 done
 
 echo "--- Pulling container" 
+docker login registry-1.docker.io -u alexeivivanovamd -p ${DH_TOKEN}
 image_name="rocmshared/vllm-ci:${BUILDKITE_COMMIT}"
 container_name="rocm_${BUILDKITE_COMMIT}_$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 10; echo)"
 docker pull ${image_name}