Update CODEOWNERS (#3852)

Update CODEOWNERS to reflect project's current maintainers

Author: tomerd

CODEOWNERS

@@ -11,17 +11,29 @@
 # N: Ankit Aggarwal
 # E: [email protected]
 # D: Package Manager
-# 
+
 # N: Anders Bertelrud
 # E: [email protected]
 # D: Package Manager
- 
+
+# N: Boris Buegling
+# E: [email protected]
+# D: Package Manager
+
 # N: Daniel Dunbar
 # E: [email protected]
 # D: Package Manager
 
+# N: Ellie Shin
+# E: [email protected]
+# D: Package Manager
+
+# N: Tomer Doron
+# E: [email protected]
+# D: Package Manager
+
 ###
 
 # The following lines are used by GitHub to automatically recommend reviewers.
 
-* @abertelrud @neonichu @tomerd @friedbunny
+* @abertelrud @neonichu @tomerd @elsh