Add npx

Author: acolytec3

.github/workflows/test-deploy.yaml

@@ -61,7 +61,7 @@ jobs:
           npm install
           cp ../../../docs/config/gatsby-config.js gatsby-config-preview.js
           sed -i 's|pathPrefix: "/execution-apis"|pathPrefix: "/execution-apis/preview/PR${{ github.event.number }}"|g' gatsby-config-preview.js
-          gatsby build --prefix-paths --config gatsby-config-preview.js
+          npx gatsby build --prefix-paths --config gatsby-config-preview.js
       - name: Cache docs build output
         uses: actions/cache@v4
         with: