DOCSP-51303 Add noindex on security landing page (#135) (#136)

(cherry picked from commit 9359ec2)

Co-authored-by: lindseymoore <[email protected]>

Author: github-actions[bot]

source/security.txt

@@ -10,6 +10,7 @@ Secure Your Data
 
 .. meta::
    :keywords: ruby framework, odm, security
+   :robots: noindex, nosnippet 
 
 .. toctree::
    :caption: Secure Your Data