Release v1.2.3

v1.2.3 main: produce help if no arguments provided

Release v1.2.1

Github ci changes

- use ubuntu-20.04 as the builder to depend on libhs5 instead of libhs4

Release v1.2.0

Automatically created from tag.

Release v1.1.1

Automatically created from tag.

Release v1.1.0

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Release v1.0.0

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