Ticket #51985: 51985.3.patch

src/wp-content/themes/twentytwentyone/assets/sass/05-blocks/code/_style.scss

@@ -6 +6 @@
         padding: var(--global--spacing-unit);
 
         code {
+                color: var(--global--color-primary);
                 font-size: var(--global--font-size-xs);
                 white-space: pre;
                 overflow-x: auto;