GH-48866: Add inline keywoard to fix the warning

Author: akravchukdremio

cpp/src/gandiva/precompiled/time.cc

@@ -570,7 +570,8 @@ bool is_valid_time(const int hours, const int minutes, const int seconds) {
 // Normalize sub-seconds value to milliseconds precision (3 digits).
 // Truncates if more than 3 digits are provided, pads with zeros if fewer than 3 digits
 ARROW_FORCE_INLINE
-static int32_t normalize_subseconds_to_millis(int32_t subseconds, int32_t num_digits) {
+static inline int32_t normalize_subseconds_to_millis(int32_t subseconds,
+                                                     int32_t num_digits) {
   if (num_digits <= 0 || num_digits == 3) {
     // No need to adjust
     return subseconds;