Merge pull request #25466 from dvdksn/sbx/brew-trust

sbx: add brew trust for macos install

Author: dvdksn

content/manuals/ai/sandboxes/_index.md

@@ -33,6 +33,7 @@ Install the `sbx` CLI and sign in:
 {{< tab name="macOS" >}}
 
 ```console
+$ brew trust docker/tap
 $ brew install docker/tap/sbx
 $ sbx login
 ```

content/manuals/ai/sandboxes/get-started.md

@@ -69,6 +69,7 @@ Docker Desktop is not required to use `sbx`.
 {{< tab name="macOS" >}}
 
 ```console
+$ brew trust docker/tap
 $ brew install docker/tap/sbx
 $ sbx login
 ```