use a defined logger

this should avoid issues with the embedded
client also attempting to use the same global logger

proxy/internal/auth/oidc.go

@@ -12,7 +12,6 @@ import (
 	"time"
 
 	"github.com/coreos/go-oidc/v3/oidc"
-	log "github.com/sirupsen/logrus"
 	"golang.org/x/oauth2"
 )
 
@@ -165,7 +164,6 @@ func (o *OIDC) handleCallback(w http.ResponseWriter, r *http.Request) {
 	// Exchange code for token
 	token, err := o.oauthConfig.Exchange(r.Context(), code)
 	if err != nil {
-		log.WithError(err).Error("Token exchange failed")
 		http.Error(w, "Authentication failed", http.StatusUnauthorized)
 		return
 	}