ci: build on ubuntu and add step that verifies that generated code ha… · Fresa/Kafka.Protocol@a8f1966

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/setup-dotnet@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions/checkout@v3, actions/setup-dotnet@v1. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Dereference of a possibly null reference.

Non-nullable field '_type' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_typeName' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_range' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_type' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_prettyName' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_range' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_range' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_range' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_type' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

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