Reverted the ID math-auto-transform to new-text-transform-values

There are still tests that refer to the old ID.

spec.html

@@ -1326,7 +1326,7 @@ <h4>Identifier <code>&lt;mi&gt;</code></h4>
           <p>The layout algorithm is the same as the [^mtext^] element. The
             <a>user agent stylesheet</a>
             must contain the following property in order to implement automatic
-            italic via the text-transform value introduced in <a href="#math-auto-transform"></a>:
+            italic via the text-transform value introduced in <a href="#new-text-transform-values"></a>:
           </p>
           <pre class="css" data-include="user-agent-stylesheet/mi.css"></pre>
 
@@ -1357,7 +1357,7 @@ <h4>Identifier <code>&lt;mi&gt;</code></h4>
           <div class="example" id="mi-example">
             <p>In the following example, [^mi^] is used to render
               variables and function names. Note that per
-              <a href="#math-auto-transform"></a> the default
+              <a href="#new-text-transform-values"></a> the default
               style <code>text-transform: math-auto</code> has
               no effect on the first <code>&lt;mi&gt;</code> ("cos" is made of three characters),
               makes the second <code>&lt;mi&gt;</code> render as math italic ("c" is made of a single
@@ -4799,7 +4799,7 @@ <h3>The <code>display: block math</code>
           <img src="examples/example-display.png" alt="display example">
         </div>
       </section>
-      <section id="math-auto-transform">
+      <section id="new-text-transform-values">
         <h3>The <code>math-auto</code> transform</h3>
         <p>The <a data-xref-type="css-property">text-transform</a> property
           from <a data-cite="CSS-TEXT-4"></a>