Fix LINUX_BINARY_PLATFORM checking (#2293)
Also check for "aarch64"
diff --git a/buildkite/bazelci.py b/buildkite/bazelci.py
index 965889e..b63a71e 100755
--- a/buildkite/bazelci.py
+++ b/buildkite/bazelci.py
@@ -474,7 +474,7 @@
# In order to test that "the one Linux binary" that we build for our official releases actually
# works on all Linux distributions that we test on, we use the Linux binary built on our official
# release platform for all Linux downstream tests.
-LINUX_BINARY_PLATFORM = "rockylinux8_arm64" if platform_module.machine() == "arm64" else "rockylinux8"
+LINUX_BINARY_PLATFORM = "rockylinux8_arm64" if platform_module.machine() in ["arm64", "aarch64"] else "rockylinux8"
XCODE_VERSION_REGEX = re.compile(r"^\d+\.\d+(\.\d+)?$")
XCODE_VERSION_OVERRIDES = {"10.2.1": "10.3", "11.2": "11.2.1", "11.3": "11.3.1"}
