update bootstrap to 5.3.8

Author: johndoh

_config.yml

@@ -21,12 +21,12 @@ libs: {
     css: '/styles/styles.min.css?v=2025072600',
     bootstrap: {
         css: {
-            url: 'https://cdn.jsdelivr.net/npm/[email protected].7/dist/css/bootstrap.min.css',
-            sri: 'sha384-LN+7fdVzj6u52u30Kp6M/trliBMCMKTyK833zpbD+pXdCLuTusPj697FH4R/5mcr'
+            url: 'https://cdn.jsdelivr.net/npm/[email protected].8/dist/css/bootstrap.min.css',
+            sri: 'sha384-sRIl4kxILFvY47J16cr9ZwB07vP4J8+LH7qKQnuqkuIAvNWLzeN8tE5YBujZqJLB'
         },
         js: {
-            url: 'https://cdn.jsdelivr.net/npm/[email protected].7/dist/js/bootstrap.bundle.min.js',
-            sri: 'sha384-ndDqU0Gzau9qJ1lfW4pNLlhNTkCfHzAVBReH9diLvGRem5+R9g2FzA8ZGN954O5Q'
+            url: 'https://cdn.jsdelivr.net/npm/[email protected].8/dist/js/bootstrap.bundle.min.js',
+            sri: 'sha384-FKyoEForCGlyvwx9Hj09JcYn3nv7wiPVlz7YYwJrWVcXK/BmnVDxM+D2scQbITxI'
         }
     },
     fontawesome: {