typo

Author: sbernauer

.github/ISSUE_TEMPLATE/pre-release-chart-updates.md

@@ -17,7 +17,7 @@ to find all referenced charts.
 
 ### Best-effort helper script
 
-There is a best-effort helper scripts, which might help you: `.scripts/update_helm_charts.py`.
+There is a best-effort helper script which might help you: `.scripts/update_helm_charts.py`.
 Please read the warnings it prints on startup and keep them in mind.
 
 ### Update Instructions