fix(gnoweb): FaucetURL correct endpoint (gnolang#1449)

<!-- please provide a detailed description of the changes made in this
pull request. -->

Following PR https://github.com/gnolang/gno/pull/1444/files

This is needed for portal loop

<details><summary>Contributors' checklist...</summary>

- [ ] Added new tests, or not needed, or not feasible
- [ ] Provided an example (e.g. screenshot) to aid review or the PR is
self-explanatory
- [ ] Updated the official documentation or not needed
- [ ] No breaking changes were made, or a `BREAKING CHANGE: xxx` message
was included in the description
- [ ] Added references to related issues and PRs
- [ ] Provided any useful hints for running manual tests
- [ ] Added new benchmarks to [generated
graphs](https://gnoland.github.io/benchmarks), if any. More info
[here](https://github.com/gnolang/gno/blob/master/.benchmarks/README.md).
</details>

gno.land/pkg/gnoweb/views/faucet.html

@@ -20,7 +20,7 @@
           {{ end }}
         </script>
 
-        <form method="POST" action="{{ .Data.faucetURL }}">
+        <form method="POST" action="{{ .Data.Faucet.faucetURL }}">
           <label for="toaddr">GNO.land address (e.g. g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5):</label><br />
           <div><input type="text" id="toaddr" name="toaddr" required /></div>
           {{ if .Data.captchaSite }}