Update id/auth dependency

go.mod

go.sum

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

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

vendor/git.autistici.org/id/auth/backend/file/file.go

vendor/git.autistici.org/id/auth/backend/ldap/ldap.go

vendor/git.autistici.org/id/auth/backend/sql/sql.go

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

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

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/auth/server/authserver.go

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

vendor/modules.txt