bpo-37253: Fix typo in PyCompilerFlags doc (GH-14036)

Remove ";" to fix Sphinx formatting.
diff --git a/Doc/c-api/veryhigh.rst b/Doc/c-api/veryhigh.rst
index 835afcb..e6704dd 100644
--- a/Doc/c-api/veryhigh.rst
+++ b/Doc/c-api/veryhigh.rst
@@ -394,7 +394,7 @@
 
       Compiler flags.
 
-   .. c:member:: int cf_feature_version;
+   .. c:member:: int cf_feature_version
 
       *cf_feature_version* is the minor Python version. It should be
       initialized to ``PY_MINOR_VERSION``.