Update module go-test/deep to v1

See merge request ai3/accountserver!17

Update module yaml to v2.4.0

See merge request ai3/accountserver!16

Update module sethvargo/go-password to v0.2.0

See merge request ai3/accountserver!15

Update golang.org/x/net commit hash to 6772e93

See merge request ai3/accountserver!13

Update module pquerna/otp to v1.3.0

See merge request ai3/accountserver!14

Configure Renovate

See merge request ai3/accountserver!12

SizeLimit will trigger an LDAP error if there are too many results,
which is not what we expect.

Mailing lists have a slightly different concept of "ownership" and we
shouldn't automatically disable them.

Fixes issue #16.

Fixes issue #15.

Intermediate improvements to validation

See merge request ai3/accountserver!10

Required for fetching a specific resource in LDAP-aware validators.

In preparation of supporting validators that take into account the
identity of the requestor (as per issue #11).

This is part of the fix to issue ai3/accountadmin#17 and is
required for compatibility with existing DAV objects in our
legacy database.

Replace all password checks with calls to the auth-server

See merge request !9

Run a real auth-server daemon for testing, using the test LDAP server
for authentication.