feat: added opts.git.cooldown to allow updating plugins on slow connections. Fixes #1656

lua/lazy/core/config.lua

@@ -41,6 +41,10 @@ M.defaults = {
       rate = 2,
       duration = 5 * 1000, -- in ms
     },
+    -- Time in seconds to wait before running fetch again for a plugin.
+    -- Repeated update/check operations will not run again until this
+    -- cooldown period has passed.
+    cooldown = 0,
   },
   pkg = {
     enabled = true,