fix "No process is associated with this object"

Author: SimonCropp

src/DiffEngineTray/Tracker.cs

@@ -228,6 +228,10 @@ static void KillProcess(TrackedMove move, Process process)
         {
             process.Kill();
         }
+        catch (InvalidOperationException)
+        {
+            // Race condition can cause "No process is associated with this object"
+        }
         catch (Exception exception)
         {
             ExceptionHandler.Handle($"Failed to kill process. Command: {move.Exe} {move.Arguments}", exception);

src/Directory.Build.props

@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591;CS0649</NoWarn>
-    <Version>6.5.7</Version>
+    <Version>6.5.8</Version>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>Testing, Snapshot, Diff, Compare</PackageTags>
     <Description>Launches diff tools based on file extensions. Designed to be consumed by snapshot testing libraries.</Description>