[doc][CoC] Update committee members list (#135594)

The list of Code of Conduct committee member names was out of date. This
updates it, and orders them alphabetically by last name.

Author: kbeyls

llvm/docs/CodeOfConduct.rst

@@ -159,13 +159,13 @@ following
 
 The current committee members are:
 
-* Kit Barton (kbarton\@llvm.org)
+* Aaron Ballman (aaron.ballman\@llvm.org)
 * Kristof Beyls (kristof.beyls\@llvm.org)
-* Stella Stamenova (sstamenova\@llvm.org)
 * David Blaikie (dblaikie\@llvm.org)
-* Mike Edwards (medwards\@llvm.org)
+* Jonas Devlieghere (jonas.devlieghere\@llvm.org)
 * Cyndy Ishida (cishida\@llvm.org)
 * Tanya Lattner (tanyalattner\@llvm.org)
+* Stella Stamenova (sstamenova\@llvm.org)
 
 
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