[BUGFIX] StaticRouteResolver returns 404 on invalid static route

Currently, the Static Route Resolver returns HTTP status code 200
on invalid routes, but a 404 is the correct response.

Resolves: #89752
Releases: master, 9.5
Change-Id: Ic7f0cda76777e942ce20fa0577d0c4b0675a69a5
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62413


Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Reviewed-by: Susanne Moog <look@susi.dev>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>