test: make better stack first when creating a connection

packages/backend/src/apps/better-stack/common/add-auth-header.js

@@ -0,0 +1,9 @@
+const addAuthHeader = ($, requestConfig) => {
+  if ($.auth.data?.apiKey) {
+    requestConfig.headers.Authorization = `Bearer ${$.auth.data.apiKey}`;
+  }
+
+  return requestConfig;
+};
+
+export default addAuthHeader;