Upgrade go-minitrust to 0.2.5

Bumb copyright year and fix appendixes

Fix test workflow in CI

Upgrade go-critic in "CI" workflow

Upgrade golang.org/x/crypto to v0.18.0

Upgrade dependencies

Format code with gofumpt

Fix packaging

Rephrase README.md first lines

No more Go 1.17

Update dependencies

Set .gitattributes for *.do detection in linguist

Run tests with go-1.17 and go-1.18

Update packages

Fix after `gocritic -enableAll`