Bug 1916277 - Part 17: Increase module fetching delay. r=jonco

Even with a 0.5-second delay, preloading causes the module script to
arrive before the import map. Increase the delay to guarantee the import
map is available before module execution.

Differential Revision: https://phabricator.services.mozilla.com/D272786

Author: allstarschh

testing/web-platform/tests/import-maps/multiple-import-maps/resolution-consistency-in-module-tree.html

@@ -20,7 +20,7 @@
 <script>
 const log = [];
 </script>
-<script type="module" src="../resources/importer.sub.js?pipe=trickle(d0.5)&name=..%2Fresources%2Flog.sub.js%3Fname%3DA"></script>
+<script type="module" src="../resources/importer.sub.js?pipe=trickle(d1)&name=..%2Fresources%2Flog.sub.js%3Fname%3DA"></script>
 <script type="module">
 test(() => {
   assert_array_equals(log, ["log:B"], "Import should use the new import map");