CI: Fix ASV post str.replace(regex) change (#49512)

Thanks @mroeschke.

Author: mroeschke

asv_bench/benchmarks/inference.py

@@ -223,7 +223,7 @@ class ToDatetimeFormat:
     def setup(self):
         N = 100000
         self.s = Series(["19MAY11", "19MAY11:00:00:00"] * N)
-        self.s2 = self.s.str.replace(":\\S+$", "")
+        self.s2 = self.s.str.replace(":\\S+$", "", regex=True)
 
         self.same_offset = ["10/11/2018 00:00:00.045-07:00"] * N
         self.diff_offset = [