Update Etcetera (#6)

* Fix issues with Swift 6 language mode.

* Bump etcetera version to 4.0.0

Author: jaredsinclair

Package.resolved

@@ -1,16 +1,15 @@
 {
-  "object": {
-    "pins": [
-      {
-        "package": "Etcetera",
-        "repositoryURL": "https://github.com/jaredsinclair/etcetera",
-        "state": {
-          "branch": null,
-          "revision": "3dc4efd2d72bc6bb857c0d7d801e913935ce325c",
-          "version": "3.0.0"
-        }
+  "originHash" : "5b11a844fdcecbd183317890ddae25374d46e76c0327f7544b01856b435db43d",
+  "pins" : [
+    {
+      "identity" : "etcetera",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/jaredsinclair/etcetera",
+      "state" : {
+        "revision" : "cb91e24c097f5e252aa13773b0f926fc7e03bbcb",
+        "version" : "4.0.0"
       }
-    ]
-  },
-  "version": 1
+    }
+  ],
+  "version" : 3
 }

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.1
+// swift-tools-version:5.10
 
 import PackageDescription
 
@@ -11,13 +11,13 @@ let package = Package(
         .library(name: "ImageCache", targets: ["ImageCache"])
     ],
     dependencies: [
-        .package(url: "https://github.com/jaredsinclair/etcetera", .upToNextMajor(from: "3.0.0"))
+        .package(url: "https://github.com/jaredsinclair/etcetera", .upToNextMajor(from: "4.0.0"))
     ],
     targets: [
         .target(
             name: "ImageCache",
             dependencies: [
-                "Etcetera"
+                .product(name: "Etcetera", package: "Etcetera")
             ]
             // Uncomment to enable complete strict concurrency checking. In a
             // future update, it would be handy if this were scriptable in CI:

Sources/ImageCache/Log.swift

@@ -10,4 +10,4 @@ import Foundation
 import os.log
 import Etcetera
 
-let Log = OSLog(subsystem: "com.niceboy.ImageCache", category: "Images")
+nonisolated(unsafe) let Log = OSLog(subsystem: "com.niceboy.ImageCache", category: "Images")