update 0.4.0

A package for checking for updates.

0.4.0

• use tested for testing
• migrate from pedantic to lints
• dart 3

0.3.1

• Actually GitHub has a better low-level API, which reduces internet usage

0.3.0

• Better API because of schttp 2

0.2.0

• Using schttp 1.1 it disables caching now
• Updated just about every dependency

0.1.1-nullsafety.0

• Null safety

0.1.0

• Proper version comparison
• Tests

0.0.1

• The initial release with all the code that was previously in Amplessimus.