fixup! fix: wait for agd to stop if it's running

packages/synthetic-chain/public/upgrade-test-scripts/env_setup.sh

@@ -66,19 +66,17 @@ await_agd_startable() {
 
   local wait="10s"
 
-  agd status >/dev/null 2>&1
-  local exit_code=$?
-
-  # If agd is running and we have not reached the maximum number of retries,
-  # wait and try again
-  if [[ $exit_code -eq 0 && $retries -gt 0 ]]; then
-    echo "Waiting $wait for agd to stop"
-    sleep $wait
-
-    wait_and_retry $(($retries - 1))
-  else
-    echo "Cannot start agd because it's already running"
-    return $exit_code
+  if agd status >/dev/null 2>&1; then
+    # agd is running
+    if [[ $retries -gt 0 ]]; then
+      echo "Waiting $wait for agd to stop"
+      sleep $wait
+
+      wait_and_retry $(($retries - 1))
+    else
+      echo "Cannot start agd because it's already running"
+      return 1
+    fi
   fi
 }