(DOCSP-39931) Adds EOL banner to v1.29 docs. (#906)

Author: erabil-mdb

snooty.toml

@@ -1,5 +1,6 @@
 name = "mongocli"
 title = "MongoDB Command Line Interface"
+eol = true
 
 intersphinx = [ "https://www.mongodb.com/docs/ops-manager/current/objects.inv",            
                 "https://www.mongodb.com/docs/manual/objects.inv",
@@ -252,6 +253,13 @@ value = """\
     ``mongocli atlas`` commands until April 30, 2023.\
     """
 
+[[banners]]
+targets = ["*"]
+variant = "info"
+value = """\
+    This version of the documentation is archived and no longer supported. View the `current documentation <https://www.mongodb.com/docs/mongocli/current/>`__ to learn how to `update your version of the MongoDB CLI <https://www.mongodb.com/docs/mongocli/current/install/#update-the-mongodb-cli>`__.\
+    """
+
 [[banners]]
 targets = ["command/mongocli-atlas-dataLakes*.txt"]
 variant = "info"