update README: go 1.24+ is required

Signed-off-by: roc <roc@imroc.cc>

Author: imroc

README.md

@@ -35,7 +35,7 @@ Full documentation is available on the official website: https://req.cool.
 
 **Install**
 
-You first need [Go](https://go.dev/) installed (version 1.23+ is required), then you can use the below Go command to install req:
+You first need [Go](https://go.dev/) installed (version 1.24+ is required), then you can use the below Go command to install req:
 
 ``` sh
 go get github.com/imroc/req/v3