chore: enhance run-tests script to build chart dependencies

- Added a step to build dependencies for the specified chart directory before running helm-unittest.

Author: jsbroks

charts/run-tests.sh

@@ -15,5 +15,8 @@ if ! helm plugin list 2>/dev/null | awk '{print $1}' | grep -qx "unittest"; then
   exit 1
 fi
 
+echo "Building dependencies for ${CHART_DIR}"
+helm dependency build "${CHART_DIR}"
+
 echo "Running helm-unittest for ${CHART_DIR}"
 helm unittest "${CHART_DIR}"