Update internal dependencies

go.mod

go.sum

vendor/git.autistici.org/id/auth/.gitlab-ci.yml

vendor/git.autistici.org/id/auth/README.md

vendor/git.autistici.org/id/auth/client/client.go

vendor/git.autistici.org/id/auth/client/pool.go

vendor/git.autistici.org/id/auth/go.mod

vendor/git.autistici.org/id/auth/go.sum

vendor/git.autistici.org/id/auth/lineproto/conn.go

vendor/git.autistici.org/id/auth/lineproto/lineproto.go

vendor/git.autistici.org/id/auth/lineproto/server.go

vendor/git.autistici.org/id/auth/lineproto/unix.go

vendor/git.autistici.org/id/keystore/client/client.go

vendor/git.autistici.org/id/keystore/go.mod

vendor/git.autistici.org/id/keystore/go.sum

vendor/git.autistici.org/id/keystore/protocol.go

vendor/github.com/theckman/go-flock/.gitignore

vendor/github.com/theckman/go-flock/.travis.yml

vendor/github.com/theckman/go-flock/LICENSE

vendor/github.com/theckman/go-flock/README.md