Add font style normal (#29744)

scss/_utilities.scss

@@ -431,7 +431,7 @@ $utilities: map-merge(
     "font-style": (
       property: font-style,
       class: font,
-      values: italic
+      values: italic normal
     ),
     "overflow-wrap": (
       property: overflow-wrap word-break, // word-break for IE & < Edge 18

site/content/docs/4.3/utilities/text.md

@@ -76,6 +76,7 @@ Quickly change the weight (boldness) of text or italicize text.
 <p class="font-weight-light">Light weight text.</p>
 <p class="font-weight-lighter">Lighter weight text (relative to the parent element).</p>
 <p class="font-italic">Italic text.</p>
+<p class="font-normal">Text without font style</p>
 {{< /example >}}
 
 ## Line height