CI: Fix spurious non-zero return status when empty changed list.

Signed-off-by: Dinko Korunic <[email protected]>

Author: dkorunic

.circleci/install_charts.sh

@@ -62,7 +62,7 @@ main() {
 
     echo "Testing for chart repo changes"
     local changed
-    changed=$(docker_exec ct list-changed | grep -v "is not a valid chart directory" | grep -c '^[a-zA-Z0-9]')
+    changed=$(docker_exec ct list-changed | grep -v "is not a valid chart directory" | grep -c '^[a-zA-Z0-9]' || true)
     if [[ ${changed} -eq 0 ]]; then
         echo "No chart changes detected"
         return