feat: Recheck version before updating (fixes #3791)

Author: theguy000

src/UniGetUI.PackageEngine.Operations/PackageOperations.cs

@@ -242,7 +242,16 @@ public UpdatePackageOperation(
             bool IgnoreParallelInstalls = false,
             AbstractOperation? req = null)
             : base(package, options, OperationType.Update, IgnoreParallelInstalls, req)
-        { }
+        { 
+            OperationStarting += (s, e) =>
+            {
+                if (package.NewerVersionIsInstalled())
+                {
+                    Line($"Package {package.Name} is already up-to-date, skipping update.", Core.Tools.LineType.Information);
+                    Cancel();
+                }
+            };
+        }
 
         protected override Task HandleFailure()
         {

src/UniGetUI.PackageEngine.PackageManagerClasses/Packages/Classes/PackageCacher.cs

@@ -102,7 +102,7 @@ public static bool NewerVersionIsInstalled(Package other)
         {
             foreach (Package found in __installed_pkgs.Values)
             {
-                if (found.IsEquivalentTo(other) && found.NormalizedVersion == other.NormalizedNewVersion)
+                if (found.IsEquivalentTo(other) && found.NormalizedVersion >= other.NormalizedNewVersion)
                 {
                     return true;
                 }