[devdocsgjs/main: 1546/1867] Update Cmake to 3.20

[Andy Holmes <andyholmes src gnome org>]

commit c8a62bd4ff271e1ea30e9b8f6e4ae38d823bd4ed
Author: Enoc <brianhernandez222 hotmail com>
Date:   Fri Mar 5 09:55:48 2021 -0600

    Update Cmake to 3.20

 lib/docs/scrapers/cmake.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/lib/docs/scrapers/cmake.rb b/lib/docs/scrapers/cmake.rb
index 3b002f28..69a8c2f6 100644
--- a/lib/docs/scrapers/cmake.rb
+++ b/lib/docs/scrapers/cmake.rb
@@ -16,10 +16,15 @@ module Docs
     options[:skip_patterns] = [/\Agenerator/, /\Acpack_gen/, /\Ainclude/, /\Arelease/]
 
     options[:attribution] = <<-HTML
-      &copy; 2000&ndash;2020 Kitware, Inc. and Contributors<br>
+      &copy; 2000&ndash;2021 Kitware, Inc. and Contributors<br>
       Licensed under the BSD 3-clause License.
     HTML
 
+    version '3.20' do
+      self.release = '3.20'
+      self.base_url = "https://cmake.org/cmake/help/v#{self.version}/";
+    end
+
     version '3.19' do
       self.release = '3.19.0'
       self.base_url = "https://cmake.org/cmake/help/v#{self.version}/";