bpo-42806: Fix ast locations of f-strings inside parentheses (GH-24067)

diff --git a/Parser/string_parser.c b/Parser/string_parser.c
index 09b8c35..a41f41c 100644
--- a/Parser/string_parser.c
+++ b/Parser/string_parser.c
@@ -405,7 +405,7 @@ fstring_compile_expr(Parser *p, const char *expr_start, const char *expr_end,
     Parser *p2 = _PyPegen_Parser_New(tok, Py_fstring_input, p->flags, p->feature_version,
                                      NULL, p->arena);
     p2->starting_lineno = t->lineno + lines - 1;
-    p2->starting_col_offset = p->tok->first_lineno == p->tok->lineno ? t->col_offset + cols : cols;
+    p2->starting_col_offset = t->col_offset + cols;
 
     expr = _PyPegen_run_parser(p2);