test: @putout/plugin-esm: resolve-imported-file: update fixtures

Author: coderaiser

packages/plugin-esm/lib/resolve-imported-file/fixture/resolve-imported-file-fix.js

@@ -5,5 +5,5 @@ __putout_processor_filesystem([
     ["/lib/a.js", "ZXhwb3J0IGRlZmF1bHQgNVxcbg=="],
     "/lib/b/",
     ["/lib/b/index.js", "export default 7\n"],
-    ["/package.json", "{"main": "lib/index.js"}"]
+    ["/package.json", "{\"main\": \"lib/index.js\"}"]
 ]);

packages/plugin-esm/test/fixture/resolve-imported-file-on-fix.js

@@ -5,5 +5,5 @@ __putout_processor_filesystem([
     ["/lib/a.js", "ZXhwb3J0IGRlZmF1bHQgNVxcbg=="],
     "/lib/b/",
     ["/lib/b/index.js", "export default 7\n"],
-    ["/package.json", "{"main": "lib/index.js"}"]
+    ["/package.json", "{\"main\": \"lib/index.js\"}"]
 ]);