chore: enable OIDC for Depot CLI setup (#309)

This is a workaround for fixing OIDC auth on public PRs.

Details [here](https://codercom.slack.com/archives/C07AL9CP7B2/p1755859932503959?thread_ts=1755792054.628979&cid=C07AL9CP7B2).

Author: matifali

.github/workflows/build.yaml

@@ -71,6 +71,8 @@ jobs:
 
       - name: Set up Depot CLI
         uses: depot/setup-action@v1
+        with:
+          oidc: true
 
       - name: Build ubuntu images
         run: |