[BUGFIX] Make Linkvalidator accept tilde characters in links

Before, the Linkvalidator reported links with a tilde as broken. This problem
occurs because the wrong method is called from the idna_convert library.
This change fixes it by calling the proper method.

Resolves: #86921
Releases: 9.5, 8.7
Change-Id: Ie522f50e2f1fe6228c79ca6352ac5d1fad291224
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61592
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Richard Haeser <richard@maxserv.com>

typo3/sysext/linkvalidator/Classes/Linktype/ExternalLinktype.php

@@ -209,7 +209,7 @@ public function fetchType($value, $type, $key)
     protected function preprocessUrl(string $url): string
     {
         try {
-            return (new IdnaConvert())->encode($url);
+            return (new IdnaConvert())->encodeUri($url);
         } catch (\Exception $e) {
             // in case of any error, return empty url.
             $this->errorParams['errorType'] = 'exception';