use Beeper fork of groupme API library

Signed-off-by: Sumner Evans <sumner@beeper.com>

groupmeext/client.go

@@ -3,7 +3,7 @@ package groupmeext
 import (
 	"context"
 
-	"github.com/karmanyaahm/groupme"
+	"github.com/beeper/groupme-lib"
 )
 
 type Client struct {

groupmeext/message.go

@@ -9,7 +9,7 @@ import (
 	"io/ioutil"
 	"net/http"
 
-	"github.com/karmanyaahm/groupme"
+	"github.com/beeper/groupme-lib"
 )
 
 type Message struct{ groupme.Message }

groupmeext/subscription.go

@@ -3,8 +3,9 @@ package groupmeext
 import (
 	log "maunium.net/go/maulogger/v2"
 
-	"github.com/karmanyaahm/groupme"
 	"github.com/karmanyaahm/wray"
+
+	"github.com/beeper/groupme-lib"
 )
 
 type fayeLogger struct {