Fix warning message in build. (#1075)

This fixes a simple warning message when building.

This is also to test the CI hooks and DockerHub integrations
for the PG14 branch.

src/backend/parser/cypher_analyze.c

@@ -522,7 +522,7 @@ static void convert_cypher_to_subquery(RangeTblEntry *rte, ParseState *pstate)
                 (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                  errmsg("too many extra_nodes passed from parser")));
 
-        list_delete_ptr(stmt, temp);
+        stmt = list_delete_ptr(stmt, temp);
     }
 
     cancel_errpos_ecb(&ecb_state);