upgrade caddy to 2.6.0 and static file server handler init (#12)

* upgrade caddy to 2.6.0 and static file server handler init

.github/workflows/ci_cd.yml

@@ -89,7 +89,7 @@ jobs:
       - name: PHPUnit
         run: |
           docker network create -d bridge caddy-network
-          docker run --entrypoint caddy --name caddy -d --network="caddy-network" --hostname=caddy -v "$(pwd)/docker/caddy/autosave.json:/config/caddy/autosave.json" -p 80:80 -p 2019:2019 docker.pkg.github.com/mattvb91/caddy-php/caddy:head run --resume
+          docker run --entrypoint caddy --name caddy -d --network="caddy-network" --hostname=caddy -v "$(pwd)/docker/caddy/autosave.json:/config/caddy/autosave.json" -v "$(pwd)/docker/caddy/files:/var/files" -p 80:80 -p 2019:2019 docker.pkg.github.com/mattvb91/caddy-php/caddy:head run --resume
           docker run -v $(pwd):/app composer composer install
           docker run --network="caddy-network" -e XDEBUG_MODE=coverage -v $(pwd):/app docker.pkg.github.com/mattvb91/${{ env.REPO_NAME }}/composer:head php ./vendor/bin/phpunit --testdox --coverage-clover=coverage.xml
         env:

.gitignore

@@ -1,3 +1,4 @@
 vendor
 .idea
-.phpunit.result.cache
+.phpunit.result.cache
+composer.lock