Update GitHub Actions workflow files

Author: pulumi-bot

.github/workflows/command-dispatch.yml

@@ -6,6 +6,7 @@ env:
   PROVIDER: postgresql
   PULUMI_ACCESS_TOKEN: ${{ secrets.PULUMI_ACCESS_TOKEN }}
   PULUMI_API: https://api.pulumi-staging.io
+  PULUMI_GO_DEP_ROOT: ${{ github.workspace }}/..
   PULUMI_LOCAL_NUGET: ${{ github.workspace }}/nuget
   PYPI_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
   SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}