bump swift tools version

GMoseke · GMoseke · commit c1c35ac765ce · 2022-03-11T14:47:10.000-07:00
diff --git a/Package.swift b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.4
+// swift-tools-version:5.5
 
 import PackageDescription
 
