Gemfile.tt in jets-3.0.0

- old
+ new

@@ -1,7 +1,7 @@
 source "https://rubygems.org"
 
-gem "jets"
+gem "jets", "~> <%= jets_minor_version %>"
 
 <% if @webpacker -%>
 # Include jetpacker if you are building html pages
 gem "jetpacker"
 <% end -%>