Update composer deps, add php 8.3 support

composer.json

@@ -5,7 +5,7 @@
 	"license": "AGPL-3.0-only",
 	"type": "project",
 	"require": {
-		"php": "^8.1|^8.2",
+		"php": "^8.1|^8.2|^8.3",
 		"ext-bcmath": "*",
 		"ext-ctype": "*",
 		"ext-curl": "*",