Deprecate "Workshops and Events" category

The category has now been merged with the "Groups and Events" category.

This is an interim measure until we can set up a redirect from the "Workshops and Events" category URL to the "Groups
and Events" category in order to avoid breaking any links. Once that is done, the "Workshops and Events" category will
be deleted.

Author: per1234

content/categories/community/workshops-and-events/_topics/about-the-workshops-and-events-category/1.md

@@ -4,7 +4,7 @@
 
 | Group    | See | Reply | Create |
 | -------- | --- | ----- | ------ |
-| everyone | ✓   | ✓     | ✓      |
+| everyone | ✓   |       |        |
 
 ## Published At
 

content/categories/community/workshops-and-events/_topics/how-to-get-the-best-out-of-this-forum

@@ -1,2 +1 @@
 - https://forum.arduino.cc/t/about-the-workshops-and-events-category/847483
-- https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/681337

content/categories/community/workshops-and-events/README.md renamed to content/categories/forum-2005-2010-read-only/workshops-and-events/README.md

@@ -0,0 +1,3 @@
+This category has been merged with "Groups and Events"
+
+Please use the #community:groups-and-events category for topics related to workshops and events.