Add required version 0.2.0 to the GitExtensions.Extensibility dependency.

Author: maraf

src/GitExtensions.PluginManager/Plugin.cs

@@ -53,7 +53,7 @@ public override bool Execute(GitUIEventArgs gitUiCommands)
 
             Args args = new Args();
             args.Path = pluginsPath;
-            args.Dependencies = new List<Args.Dependency>() { new Args.Dependency("GitExtensions.Extensibility") };
+            args.Dependencies = new List<Args.Dependency>() { new Args.Dependency("GitExtensions.Extensibility", "0.2.0") };
             args.Tags = "GitExtensions";
             args.Monikers = FrameworkMonikers;
             args.SelfPackageId = PackageId;