Point the release notes page at the change history page

src/UniGetUI.Core.Data.Tests/CoreTests.cs

@@ -109,7 +109,7 @@ public void CheckGitHubReleaseUrlsUseEscapedResolvedTag()
                 "https://api.github.com/repos/Devolutions/UniGetUI/releases/tags/3.3.7-beta1",
                 CoreData.GetGitHubReleaseApiUrlFromTag("3.3.7-beta1")
             );
-            Assert.Equal("https://devolutions.net/unigetui/release-notes/", CoreData.ReleaseNotesUrl);
+            Assert.Equal("https://devolutions.net/data/UniGetUIChangeHistoryUpdate.htm", CoreData.ReleaseNotesUrl);
             Assert.Equal(CoreData.ReleaseNotesUrl, CoreData.GetGitHubReleasePageUrl());
         }
     }

src/UniGetUI.Core.Data/CoreData.cs

@@ -8,7 +8,7 @@ public static class CoreData
     {
         private const string GitHubReleasePageBaseUrl = "https://github.com/Devolutions/UniGetUI/releases/tag/";
         private const string GitHubReleaseApiBaseUrl = "https://api.github.com/repos/Devolutions/UniGetUI/releases/tags/";
-        public const string ReleaseNotesUrl = "https://devolutions.net/unigetui/release-notes/";
+        public const string ReleaseNotesUrl = "https://devolutions.net/data/UniGetUIChangeHistoryUpdate.htm";
 
         private static int? __code_page;
         public static int CODE_PAGE

src/UniGetUI.Tests/ToolbarSelectionStateTests.cs

@@ -16,7 +16,25 @@ public sealed class ToolbarSelectionStateTests : IDisposable
 
     public ToolbarSelectionStateTests() => Directory.CreateDirectory(_directory);
 
-    public void Dispose() => Directory.Delete(_directory, true);
+    public void Dispose()
+    {
+        for (int attempt = 1; ; attempt++)
+        {
+            try
+            {
+                Directory.Delete(_directory, true);
+                return;
+            }
+            catch (IOException) when (attempt < 20)
+            {
+                Thread.Sleep(50);
+            }
+            catch (IOException)
+            {
+                return;
+            }
+        }
+    }
 
     private static CatalogEntry Entry(string id) => new()
     {