[3.12] gh-130169: Fix broken list markup in Doc/c-api/function.rst (GH-130174) (#130176)

gh-130169: Fix broken list markup in `Doc/c-api/function.rst` (GH-130174)
(cherry picked from commit 9837c2a)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>

Author: miss-islington

Doc/c-api/function.rst

@@ -145,12 +145,13 @@ There are a few functions specific to Python functions.
 
 .. c:type:: PyFunction_WatchEvent
 
-   Enumeration of possible function watcher events:
-   - ``PyFunction_EVENT_CREATE``
-   - ``PyFunction_EVENT_DESTROY``
-   - ``PyFunction_EVENT_MODIFY_CODE``
-   - ``PyFunction_EVENT_MODIFY_DEFAULTS``
-   - ``PyFunction_EVENT_MODIFY_KWDEFAULTS``
+    Enumeration of possible function watcher events:
+
+    - ``PyFunction_EVENT_CREATE``
+    - ``PyFunction_EVENT_DESTROY``
+    - ``PyFunction_EVENT_MODIFY_CODE``
+    - ``PyFunction_EVENT_MODIFY_DEFAULTS``
+    - ``PyFunction_EVENT_MODIFY_KWDEFAULTS``
 
    .. versionadded:: 3.12