Run Bazel test suite on Linux ARM64 platform

[8.1.0] Improve incompatible platform skipping + config_setting + label_flag … (#25137)

Failed in 1m 0s
:ubuntu: Ubuntu 20.04 LTS ARM64curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1738196057 -o bazelci.py && python3.8 bazelci.py runner --task=ubuntu2004_arm64 --http_config=https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/pipelines/bazel-linux-arm64.yml?1738196056
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Ran in 18s
Total Job Run Time: 54s