📝🚑 Fix RST list in pytest-dev#12264 changelog entry

It was being rendered inline and now it's not.

changelog/12204.bugfix.rst

@@ -3,5 +3,7 @@ Fix a regression in pytest 8.0 where tracebacks get longer and longer when multi
 Also fix a similar regression in pytest 5.4 for collectors which raise during setup.
 
 The fix necessitated internal changes which may affect some plugins:
-- ``FixtureDef.cached_result[2]`` is now a tuple ``(exc, tb)`` instead of ``exc``.
-- ``SetupState.stack`` failures are now a tuple ``(exc, tb)`` instead of ``exc``.
+
+* ``FixtureDef.cached_result[2]`` is now a tuple ``(exc, tb)`` instead of ``exc``.
+
+* ``SetupState.stack`` failures are now a tuple ``(exc, tb)`` instead of ``exc``.