Fix GitExtensions.Extensibility dependency version range

Author: maraf

src/GitExtensions.PluginTemplate/GitExtensions.PluginTemplate.nuspec

@@ -8,11 +8,12 @@
     <projectUrl>$projectUrl$</projectUrl>
     <tags>$tags$</tags>
     <dependencies>
-      <dependency id="GitExtensions.Extensibility" version="[0.1.0, 1.0.0)" />
+      <dependency id="GitExtensions.Extensibility" version="[0.4.0, 0.5.0)" />
     </dependencies>
   </metadata>
   <files>
     <file src="$targetDir$$id$.dll" target="/lib" />
     <file src="$targetDir$$id$.pdb" target="/lib" />
   </files>
-</package>
+
+</package>