fix(parquet): three pre-existing defects — unreadable FLBA files, truncated bounds, an ungated annotation - #215

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-python@v5, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Nullable value type may be null.

Test methods should not use blocking task operations, as they can cause deadlocks. Use an async test method and await instead. (https://xunit.net/xunit.analyzers/rules/xUnit1031)

Test methods should not use blocking task operations, as they can cause deadlocks. Use an async test method and await instead. (https://xunit.net/xunit.analyzers/rules/xUnit1031)

Test methods should not use blocking task operations, as they can cause deadlocks. Use an async test method and await instead. (https://xunit.net/xunit.analyzers/rules/xUnit1031)

Do not use Assert.Empty to check if a value does not exist in a collection. Use Assert.DoesNotContain instead. (https://xunit.net/xunit.analyzers/rules/xUnit2029)

Theory method 'Double_OrdersNaNAboveEveryValue' on test class 'LiteralValueTests' has InlineData duplicate(s). Remove redundant attribute(s) from the theory method. (https://xunit.net/xunit.analyzers/rules/xUnit1025)

Theory method 'Double_OrdersNaNAboveEveryValue' on test class 'LiteralValueTests' has InlineData duplicate(s). Remove redundant attribute(s) from the theory method. (https://xunit.net/xunit.analyzers/rules/xUnit1025)

Theory method 'Double_OrdersNaNAboveEveryValue' on test class 'LiteralValueTests' has InlineData duplicate(s). Remove redundant attribute(s) from the theory method. (https://xunit.net/xunit.analyzers/rules/xUnit1025)

Do not use Assert.Empty to check if a value does not exist in a collection. Use Assert.DoesNotContain instead. (https://xunit.net/xunit.analyzers/rules/xUnit2029)