spell: ignore YAML files

ignore YAML files because the spell checker was
also checking usernames, leading to false positives.

xref: #4674

Signed-off-by: Francesco Romani <[email protected]>

Author: ffromani

hack/verify-spelling.sh

@@ -45,10 +45,10 @@ cd "${ROOT}"
 RES=0
 echo "Checking spelling..."
 ERROR_LOG="${TMP_DIR}/errors.log"
-git ls-files | grep -v vendor | xargs misspell > "${ERROR_LOG}"
+git ls-files ':!*.yaml' | grep -v vendor | xargs misspell > "${ERROR_LOG}"
 if [[ -s "${ERROR_LOG}" ]]; then
   sed 's/^/error: /' "${ERROR_LOG}" # add 'error' to each line to highlight in e2e status
   echo "Found spelling errors!"
   RES=1
 fi
-exit "${RES}"
+exit "${RES}"