add cred override

Signed-off-by: Grant Linville <[email protected]>

Author: g-linville

.github/workflows/smoke.yaml

@@ -141,6 +141,7 @@ jobs:
           OPENAI_API_KEY: ${{ secrets.SMOKE_OPENAI_API_KEY }}
           GPTSCRIPT_DEFAULT_MODEL: claude-3-opus-20240229 from github.com/gptscript-ai/claude3-anthropic-provider
           ANTHROPIC_API_KEY: ${{ secrets.SMOKE_ANTHROPIC_API_KEY }}
+          GPTSCRIPT_CREDENTIAL_OVERRIDE: "github.com/gptscript-ai/claude3-anthropic-provider/credential:ANTHROPIC_API_KEY"
         name: Run smoke test for claude-3-opus-20240229
         run: |
           echo "Running smoke test for model claude-3-opus-20240229"