Doc: Fix wrong command name in QDoc manual

While bulk changing use of the `\instantiates` command to the new
`nativetype` command, the entries in the QDoc manual for
`\instantiates` were changed on accident. This lead to a confusing
statement in the documentation:
  "The \nativetype command is deprecated since Qt 6.8.
   Use \nativetype instead".

This change corrects the command name in the documentation.

Pick-to: 6.8
Task-number: QTBUG-128216
Change-Id: Ib1f42d2166c1ccfb231885ba21bf35c3d0752194
Reviewed-by: Andreas Eliasson <[email protected]>

Author: paulwicking

src/qdoc/qdoc/doc/qdoc-manual-cmdindex.qdoc

@@ -58,7 +58,7 @@
     \li \l {inlineimage-command} {\\inlineimage}
     \li \l {inmodule-command} {\\inmodule}
     \li \l {inqmlmodule-command} {\\inqmlmodule}
-    \li \l {instantiates-command} {\\nativetype} (deprecated, use \\nativetype)
+    \li \l {instantiates-command} {\\instantiates} (deprecated, use \\nativetype)
     \li \l {internal-command} {\\internal}
     \li \l {keyword-command} {\\keyword}
     \li \l {l-command} {\\l}

src/qdoc/qdoc/doc/qdoc-manual-topiccmds.qdoc

@@ -899,9 +899,9 @@
     link text.
 
     \target instantiates-command
-    \section1 \\nativetype
+    \section1 \\instantiates
 
-    The \\nativetype command is deprecated since Qt 6.8.
+    The \\instantiates command is deprecated since Qt 6.8.
     Use \qdoccmd nativetype instead.