chore: checkpoint before Python removal

vendor/wit-component/tests/components/link-lib-with-async-export/lib-foo.wit

@@ -0,0 +1,16 @@
+package test:test;
+world lib-foo {
+  record big {
+    a1: big2,
+    a2: big2,
+    a3: big2,
+    a4: big2,
+  }
+  record big2 {
+    a1: string,
+    a2: string,
+    a3: string,
+    a4: string,
+  }
+  export f: async func() -> big;
+}