Drop Swift 5.2 and 5.3 support (#287)

fabianfett · web-flow · commit 0036a89525b7 · 2022-04-26T22:37:09.000+02:00
SwiftNIO has dropped support for Swift 5.2 and 5.3. apple/swift-nio#2080 We should do the same.
diff --git a/Package.swift b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.2
+// swift-tools-version:5.4
 import PackageDescription
 
 let package = Package(
