Enable hash pinning in bazel-testing

buildkite/bazelci.py

diff --git a/buildkite/bazelci.py b/buildkite/bazelci.py
index 174f22f..20eb337 100755
--- a/buildkite/bazelci.py
+++ b/buildkite/bazelci.py
@@ -318,8 +318,9 @@
 
 
 def get_docker_image(image_name):
-    if BUILDKITE_ORG == "bazel-testing":
-        return f"gcr.io/{DOCKER_REGISTRY_PREFIX}/{image_name}"
+    # Temporarily disable this check to enable testing hash pinning in the testing cluster.
+    ##if BUILDKITE_ORG == "bazel-testing":
+    ##    return f"gcr.io/{DOCKER_REGISTRY_PREFIX}/{image_name}"
     digest = IMAGE_HASHES.get(image_name)
     if not digest:
         raise ValueError(f"No digest found for docker image: {image_name}")