feat: service account token exchange

example/client/github/github.go

@@ -3,11 +3,12 @@ package main
 import (
 	"context"
 	"fmt"
+	"os"
+
 	"github.com/caos/oidc/pkg/cli"
 	"github.com/caos/oidc/pkg/rp"
 	"github.com/google/go-github/v31/github"
 	githubOAuth "golang.org/x/oauth2/github"
-	"os"
 )
 
 var (
@@ -37,7 +38,6 @@ func main() {
 	if err != nil {
 		fmt.Println("OAuth flow failed")
 	} else {
-
 		fmt.Println("OAuth flow success")
 	}
 }

example/internal/mock/storage.go

@@ -170,7 +170,7 @@ func (s *AuthStorage) GetKeySet(_ context.Context) (*jose.JSONWebKeySet, error)
 	pubkey := s.key.Public()
 	return &jose.JSONWebKeySet{
 		Keys: []jose.JSONWebKey{
-			jose.JSONWebKey{Key: pubkey, Use: "sig", Algorithm: "RS256", KeyID: "1"},
+			{Key: pubkey, Use: "sig", Algorithm: "RS256", KeyID: "1"},
 		},
 	}, nil
 }