fix reproducibility issue (#62459)

Signed-off-by: Hongxu Jia <[email protected]>
Co-authored-by: Matthew Roeschke <[email protected]>

Author: hongxu-jia

pandas/_libs/tslibs/timedeltas.pyx

@@ -2068,6 +2068,9 @@ class Timedelta(_Timedelta):
 
         disallow_ambiguous_unit(unit)
 
+        cdef:
+            int64_t new_value
+
         # GH 30543 if pd.Timedelta already passed, return it
         # check that only value is passed
         if isinstance(value, _Timedelta):