fix: update cre-cli installation steps to use bash

Author: anirudhwarrier

src/content/cre/getting-started/cli-installation/macos-linux.mdx

@@ -49,7 +49,7 @@ Choose your installation method:
 The easiest way to install the CRE CLI is using the installation script:
 
 ```bash
-curl -sSL https://cre.chain.link/install.sh | sh
+curl -sSL https://cre.chain.link/install.sh | bash
 ```
 
 This script will: