Update golang.org/x/crypto commit hash to 8634188

See merge request !47

Update github.com/amoghe/go-crypt commit hash to 20eada5

See merge request !50

Update module github.com/go-ldap/ldap/v3 to v3.4.2

See merge request !49

The ProxyHandler apparently assumes that you're running a gorilla.Mux
for request routing, as it sets the URL.Scheme field of the incoming
request - which is normally unset. This has the consequence of messing
up all sorts of things, including redirects, because the other
fields (like Host) of the request URL are still going to be unset.

Update module github.com/openzipkin/zipkin-go to v0.4.0

See merge request !38

Update github.com/duo-labs/webauthn commit hash to 81aea48

See merge request !42

Update module github.com/fxamacker/cbor/v2 to v2.4.0

See merge request !43

Update golang.org/x/crypto commit hash to 30dcbda

See merge request !44

Update module github.com/prometheus/client_golang to v1.12.1

See merge request !45

Update golang.org/x/crypto commit hash to 5770296

See merge request !41

Add support for WebAuthN registrations

See merge request !32

Drop github.com/tstranex/u2f as the implementation, in favor of
github.com/duo-labs/webauthn.

We've been actually assuming ACLs were working this way in all our
configuration files, so better make it so: the first path match in the
ACL allow list will cause the list iteration to stop (the final result
will then depend on the CN match).

Update golang.org/x/crypto commit hash to ae814b3

See merge request !39

Update module github.com/cenkalti/backoff/v4 to v4.1.2

See merge request !40

The clients already support it (via the default net/http.Transport),
and it can be enabled with a configuration parameter. The default is
still currently disabled, though there is plan to flip it later to
enabled-by-default if it proves to be working as expected in
production.

We also introduce, via a slight refactoring of the Serve() code, a
test of the top-level http.Handler (with the full middleware stack).

Use mime.ParseMediaType to obtain the main content type.

Update golang.org/x/crypto commit hash to 089bfa5

See merge request !31

Update module github.com/theckman/go-flock to v0.8.1

See merge request !36

Update module github.com/go-ldap/ldap/v3 to v3.4.1

See merge request !37