fix: Avoid log spam on 404 routes not using GET

[juliusknorr]

Summary

Avoid error logging in cases where a 404 page is rendered on non-GET requests. Ideally we would have the /error/404 route handle all http methods but this would mean we need to add each individually to the routes file as there is no combined way in the symphony router symfony/symfony#45218

[core] Fatal: Symfony\Component\Routing\Exception\MethodNotAllowedException:  at <<closure>>

0. /var/www/cloud.nextcloud.com/nextcloud/lib/private/Route/Router.php line 278
   Symfony\Component\Routing\Matcher\UrlMatcher->match("/error/404")
1. /var/www/cloud.nextcloud.com/nextcloud/lib/private/Route/Router.php line 307
   OC\Route\Router->findMatchingRoute("/error/404")
2. /var/www/cloud.nextcloud.com/nextcloud/lib/base.php line 1098
   OC\Route\Router->match("/error/404")
3. /var/www/cloud.nextcloud.com/nextcloud/index.php line 36
   OC::handleRequest()

PUT /testing-put.txt

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[juliusknorr]

/backport to stable26

[nickvergessen]

I had this fixed locally as well already. seems I just didn't send it yet :-X