Clear Content-Cache of pages, wich are excluded from CookieConsent

[Nikdro]

Within the CookieConsent-Settings on configuration page, you can exclude single pages from CookieConsent being displayed: https://github.com/KaufmannDigital/KaufmannDigital.GDPR.CookieConsent?tab=readme-ov-file#exclude-special-pages-like-imprint

After adding a page there, currently the content-cache of that selected page isn't flushed. With a simple signal-slot setup it shouldn't be a big deal, to flush cache of the selected packages.