fix windows compilation errror

src/inc/http.h

@@ -22,8 +22,7 @@ extern "C" {
 
 #include <stdint.h>
 
-int32_t httpGetReqCount();
-int32_t httpClearReqCount();
+int64_t httpGetReqCount();
 int32_t httpGetStatusCodeCount(int index);
 int32_t httpClearStatusCodeCount(int index);
 int32_t httpInitSystem();

src/plugins/http/src/httpSystem.c

@@ -120,7 +120,7 @@ void httpCleanUpSystem() {
   tsHttpServer.status = HTTP_SERVER_CLOSED;
 }
 
-int32_t httpGetReqCount() { return atomic_exchange_64(&tsHttpServer.requestNum, 0); }
+int64_t httpGetReqCount() { return atomic_exchange_64(&tsHttpServer.requestNum, 0); }
 int32_t httpGetStatusCodeCount(int index) {
   return atomic_load_32(&tsHttpServer.statusCodeErrs[index]);
 }