docs(README): update to 2.5.4 as latest release (#2420)

Author: arthurzenika

README.md

@@ -52,11 +52,11 @@ You just have to download the binary compatible with your platform to a director
 
 ```bash
 # Check out the latest release available on github <https://github.com/scaleway/scaleway-cli/releases/latest>
-VERSION="2.5.1"
+VERSION="2.5.4"
 
 # Download the release from github
 sudo curl -o /usr/local/bin/scw -L "https://github.com/scaleway/scaleway-cli/releases/download/v${VERSION}/scaleway-cli_${VERSION}_linux_amd64"
-# Naming changed lately, the url prior to 2.5.1 was https://github.com/scaleway/scaleway-cli/releases/download/v${VERSION}/scw-${VERSION}-linux-x86_64
+# Naming changed lately, the url prior to 2.5.4 was https://github.com/scaleway/scaleway-cli/releases/download/v${VERSION}/scw-${VERSION}-linux-x86_64
 
 # Allow executing file as program
 sudo chmod +x /usr/local/bin/scw