remove redundant fields · planetarium/lib9c@5722f4e

The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions/setup-dotnet@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Possible null reference return.

Possible null reference return.

Possible null reference return.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Converting null literal or possible null value to non-nullable type.

Possible null reference return.

Possible null reference return.

Possible null reference return.

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