feat: Implement initial version of getExecutions query

packages/backend/src/graphql/queries/get-executions.ts

@@ -0,0 +1,16 @@
+import Context from '../../types/express/context';
+
+const getExecutions = async (
+  _parent: unknown,
+  _params: unknown,
+  context: Context
+) => {
+  const executions = await context.currentUser
+    .$relatedQuery('executions')
+    .withGraphFetched('flow')
+    .orderBy('created_at', 'asc');
+
+  return executions;
+};
+
+export default getExecutions;