fix: tie plugin with gitextensions versions (not latest) (#94)

close #93

Author: lekhmanrus

src/GitExtensions.GerritPlugin/GitExtensions.GerritPlugin.csproj.user

@@ -4,9 +4,9 @@
     <!-- path is relative to $(ProjectDir) -->
     <GitExtensionsDownloadPath>..\..\..\gitextensions.shared</GitExtensionsDownloadPath>
     <!-- 'latest' or 'v3.1' (= tag from GitHub releases) or 'v3.1.0.5877' (= build number from AppVeyor)-->
-    <GitExtensionsReferenceVersion>latest</GitExtensionsReferenceVersion>
+    <GitExtensionsReferenceVersion>v6.0.3</GitExtensionsReferenceVersion>
     <!-- 'GitHub' or 'AppVeyor' -->
-    <GitExtensionsReferenceSource>AppVeyor</GitExtensionsReferenceSource>
+    <GitExtensionsReferenceSource>GitHub</GitExtensionsReferenceSource>
     <!-- for local builds (no download) -->
     <GitExtensionsPath>$(GitExtensionsDownloadPath)</GitExtensionsPath>
   </PropertyGroup>