feat: add slog logging (#432)

* feat(op): user slog for logging

integrate with golang.org/x/exp/slog for logging.
provide a middleware for request scoped logging.

BREAKING CHANGES:

1. OpenIDProvider and sub-interfaces get a Logger()
method to return the configured logger;
2. AuthRequestError now takes the complete Authorizer,
instead of only the encoder. So that it may use its Logger() method.
3. RequestError now takes a Logger as argument.

* use zitadel/logging

* finish op and testing
without middleware for now

* minimum go version 1.19

* update go mod

* log value testing only on go 1.20 or later

* finish the RP and example

* ping logging release

go.mod

@@ -1,6 +1,6 @@
 module github.com/zitadel/oidc/v3
 
-go 1.18
+go 1.19
 
 require (
 	github.com/go-chi/chi v1.5.4
@@ -11,9 +11,11 @@ require (
 	github.com/jeremija/gosubmit v0.2.7
 	github.com/muhlemmer/gu v0.3.1
 	github.com/rs/cors v1.9.0
-	github.com/sirupsen/logrus v1.9.0
+	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.8.2
+	github.com/zitadel/logging v0.4.0
 	github.com/zitadel/schema v1.3.0
+	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63
 	golang.org/x/oauth2 v0.7.0
 	golang.org/x/text v0.9.0
 	gopkg.in/square/go-jose.v2 v2.6.0
@@ -27,7 +29,7 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	golang.org/x/crypto v0.7.0 // indirect
 	golang.org/x/net v0.9.0 // indirect
-	golang.org/x/sys v0.7.0 // indirect
+	golang.org/x/sys v0.11.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.29.1 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect