Fix Unicode encoding issues in Bazel's use of Starlark

Failed in 30m 52s
:pipeline:
:fedora: Fedora 39 (OpenJDK 17, gcc 13.1.1)
Clang on :ubuntu: Ubuntu 20.04 LTS
Windows (arm64) on :windows: Windows
RBE on :ubuntu: Ubuntu 20.04 LTS
Kythe (:ubuntu: Ubuntu 22.04 LTS)
Docs on :ubuntu: Ubuntu 20.04 LTS
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:centos: CentOS 7 (shard 3)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3.6 bazelci.py runner --task=centos7 --file_config=.bazelci/presubmit.yml
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Ran in 20m 30s
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:ubuntu: Ubuntu 22.04 LTS (shard 3)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3 bazelci.py runner --task=ubuntu2204 --file_config=.bazelci/presubmit.yml
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Ran in 20m 52s
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:ubuntu: Ubuntu 20.04 LTS (shard 3)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3.8 bazelci.py runner --task=ubuntu2004 --file_config=.bazelci/presubmit.yml
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:mac: macOS (shard 1)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3 bazelci.py runner --task=macos --file_config=.bazelci/presubmit.yml
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Ran in 22m 25s
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:mac: macOS (shard 1)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3 bazelci.py runner --task=macos --file_config=.bazelci/presubmit.yml
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Ran in 5m 42s
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:mac: macOS arm64 (shard 3)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3 bazelci.py runner --task=macos_arm64 --file_config=.bazelci/presubmit.yml
Waited 6s
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Ran in 24m 22s
RBE on :ubuntu: Ubuntu 20.04 LTScurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1732122453 -o bazelci.py && python3.8 bazelci.py runner --task=rbe_ubuntu2004 --file_config=.bazelci/presubmit.yml
Waited 1s
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Ran in 13m 40s
Total Job Run Time: 13h 18m