fix: update some examples

extra/push-examples/bash-curl/index.sh

@@ -2,9 +2,10 @@
 # Filename: index.sh
 PUSH_URL="https://example.com/api/push/key?status=up&msg=OK&ping="
 INTERVAL=60
+HTTP_METHOD="GET"
 
 while true; do
-    curl -s -o /dev/null $PUSH_URL
+    curl -X $HTTP_METHOD -s -o /dev/null $PUSH_URL
     echo "Pushed!"
     sleep $INTERVAL
 done