Fix insecure TLS and bump version to 3

main.go

@@ -8,6 +8,7 @@ import (
 	"context"
 	"fmt"
 	"path/filepath"
+	"crypto/tls"
 
 	"github.com/diamondburned/gotk4/pkg/gdk/v4"
 	"github.com/diamondburned/gotk4/pkg/gdkpixbuf/v2"
@@ -138,6 +139,7 @@ func main() {
 				return charset.NewReaderLabel(c, input)
 			},
 			ConnectTimeout: 300,
+			TLSConfig: &tls.Config{InsecureSkipVerify: loadedConfig.Insecure},
 		},
 		Jid:                    loadedConfig.Username + "/" + loadedConfig.Resource,
 		Credential:             xmpp.Password(loadedConfig.Password),