[www] Update for Clang 20 release

Author: AaronBallman

clang/www/c_status.html

@@ -201,7 +201,7 @@ <h2 id="c2y">C2y implementation status</h2>
     <tr>
       <td>Slay Some Earthly Demons VI</td>
       <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3344.pdf">N3344</a></td>
-      <td class="unreleased" align="center">Clang 20</td>
+      <td class="full" align="center">Clang 20</td>
     </tr>
     <tr>
       <td>Slay Some Earthly Demons VII</td>
@@ -845,7 +845,7 @@ <h2 id="c2x">C23 implementation status</h2>
     <tr>
       <td>Improved normal enumerations</td>
       <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3029.htm">N3029</a></td>
-      <td class="unreleased" align="center">Clang 20</td>
+      <td class="full" align="center">Clang 20</td>
     </tr>
     <tr>
       <td>Relax requirements for va_start</td>
@@ -855,7 +855,7 @@ <h2 id="c2x">C23 implementation status</h2>
     <tr>
       <td>Enhanced enumerations</td>
       <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3030.htm">N3030</a></td>
-      <td class="unreleased" align="center">Clang 20</td>
+      <td class="full" align="center">Clang 20</td>
     </tr>
     <tr>
       <td>Freestanding C and IEC 60559 conformance scope reduction</td>