Update caching plugin in Caddy Dockerfile

Replaced the Souin plugin with the official Caddy cache-handler plugin. This ensures better compatibility and support while maintaining caching functionality. Adjustments align with updated plugin recommendations for Caddy.

Author: nsouto

caddy/Dockerfile

@@ -11,7 +11,7 @@ RUN xcaddy build \
     --with github.com/caddy-dns/cloudflare \
     --with github.com/mholt/caddy-l4 \
     --with github.com/hslatman/caddy-crowdsec-bouncer/http \
-    --with github.com/darkweak/souin/plugins/caddy
+    --with github.com/caddyserver/cache-handler
 
 # TODO: Build the octane image locally and use it here, instead of pulling from dockerhub
 #  This should work on GithubAction and locally using the docker buildx build command