fix(app/actions): quiet dependency check [skip ci]

source/app/action/run.sh

@@ -3,7 +3,7 @@ echo "::group::Metrics docker image setup"
 echo "GitHub action: $METRICS_ACTION ($METRICS_ACTION_PATH)"
 cd $METRICS_ACTION_PATH
 for DEPENDENCY in docker jq; do
-  if ! which $DEPENDENCY; then
+  if ! which $DEPENDENCY > /dev/null 2>&1; then
     echo '::error::"$DEPENDENCY" is not installed on current runner but is needed to run metrics'
     MISSING_DEPENDENCIES=1
   fi