chore(deps): update dependency flag-icon-css to v7.5.0 (#39)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

layouts/partials/head.html

@@ -34,7 +34,7 @@
 {{ end }}
 
 <!-- CSS -->
-<link href="https://cdnjs.cloudflare.com/ajax/libs/flag-icon-css/7.3.2/css/flag-icon.min.css" rel="stylesheet"
+<link href="https://cdnjs.cloudflare.com/ajax/libs/flag-icon-css/7.5.0/css/flag-icon.min.css" rel="stylesheet"
     type="text/css">
 
 {{ $options := (dict "targetPath" "main.css" "outputStyle" "compressed" "enableSourceMap" true) }}