Use timezone in metadata (#307)

source/templates/classic/image.svg

@@ -14,7 +14,7 @@
           <% if (account === "user") { %>
             <span>These metrics <%= !computed.token.scopes.includes("repo") ? "do not include all" : "include" %> private contributions<% if ((config.timezone?.name)&&(!config.timezone?.error)) { %>, timezone <%= config.timezone.name %><% } %></span>
           <% } %>
-          <span>Last updated <%= new Date().toGMTString() %> with lowlighter/metrics@<%= meta.version %></span>
+          <span>Last updated <%= meta.generated %> with lowlighter/metrics@<%= meta.version %></span>
         </footer>
       <% } %>
       <div id="metrics-end"></div>

source/templates/repository/image.svg

@@ -26,7 +26,7 @@
 
       <% if (base.metadata) { %>
         <footer>
-          <span>Last updated <%= new Date().toGMTString() %> with lowlighter/metrics@<%= meta.version %></span>
+          <span>Last updated <%= meta.generated %> with lowlighter/metrics@<%= meta.version %></span>
         </footer>
       <% } %>
 

source/templates/terminal/image.svg

@@ -48,7 +48,7 @@ Metrics generator <%= meta.version %>
 These generated metrics comes with ABSOLUTELY NO
 WARRANTY, to the extent permitted by applicable law.
 
-Last generated: <%= new Date().toGMTString() %>
+Last generated: <%= meta.generated %>
 </div><% } -%>
 <% for (const partial of [...partials]) { %><%- await include(`partials/${partial}.ejs`) %><% } -%>
 <% if (base.metadata) { -%>