Grading tests have all been converted to new template, move all under private

commit e2b7bd641e8d9fcb7489cad9cd3aacf298cfe2fb
Author: Julie Zelenski <[email protected]>
Date:   Tue Jan 14 00:09:08 2025 -0800

    Grading tests have all been converted to new template, move all under private

Author: zelenski

_config.yml

@@ -35,8 +35,7 @@ plugins:        [jekyll-sitemap, jekyll-target-blank]
 # blacklist files/folders to never publish
 # if name is prefixed with dot/underscore will be excluded by default
 exclude:        [Gemfile, vendor, README.md, /cs107e/, private,
-  lectures/*/private, labs/*/private, assignments/*/private, lectures/private,
-  yass/node_modules, yass/*.json, yass/*.mjs, grading-tests]
+  lectures/*/private, labs/*/private, assignments/*/private, lectures/private ]
 # whitelist of files/folders to always publish (these would be excluded because of prefix)
 include:        [_assets, _templates]