fix(rust): skip path mapping for unsandboxed actions

[jason-rl]

Summary

• omit supports-path-mapping from Rust actions when the target is tagged no-sandbox or local
• preserve those execution tags so test execution can remain unsandboxed
• add a regression target covering Rustc and Clippy under --experimental_output_paths=strip

Testing

• bazel test --config=clippy --experimental_output_paths=strip //test/path_mapping:no_sandbox_test
• bazel test --config=clippy --experimental_output_paths=strip //test/unit/location_expansion:location_expansion_test_suite //test/unit/clippy:clippy_test_suite
• repository buildifier, buildifier-lint, and typos pre-commit hooks

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