Excluding voter list from spellcheck

Signed-off-by: Bridget Kromhout <[email protected]>

Author: bridgetkromhout

hack/.spelling_failures

@@ -4,6 +4,7 @@ contributors/guide/contributor-cheatsheet/README-it.md
 contributors/guide/contributor-cheatsheet/README-pt.md
 committee-steering/meeting-notes-archive
 elections/steering/2022/voters.yaml
+elections/steering/2023/voters.yaml
 events/2014
 events/elections/2017/
 sig-contributor-experience/meeting-notes-archive