Update CODEOWNERS

Adding myself as a code owner for playbooks so I can approve PRs

CODEOWNERS

@@ -7,7 +7,7 @@
 
 # This is copied from here: https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners
 
-/Playbooks/   @dicolanl @Yaniv-Shasha @sarah-yo @sreedharande
+/Playbooks/   @dicolanl @Yaniv-Shasha @sarah-yo @sreedharande @lior-tamir
 /Workbooks/ @Liatlishams
 /Solutions/HoneyTokens @haneuvir
 /Solutions/SAP @udidekel @tamirkopitz