Fixing (hopefully) chart publish job

Change-Id: I6c9dd5592b73ffb2165f0be4f7dabdf46ee3f584
diff --git a/helmrepo.sh b/helmrepo.sh
index df955cc..3c94aa0 100755
--- a/helmrepo.sh
+++ b/helmrepo.sh
@@ -43,7 +43,7 @@
 
 echo "Generating repo index"
 
-scp "${PUBLISH_URL}":"${ORIGINAL_INDEX_YAML}" .
+scp -o StrictHostKeyChecking=no "${PUBLISH_URL}":"${ORIGINAL_INDEX_YAML}" .
 
 helm repo index "${REPO_DIR}" --url https://"${PUBLISH_URL}" --merge index.yaml