Potential fix for code scanning alert no. 83: Potentially overrunning write

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: lucasssvaz

cores/esp32/esp32-hal-time.c

@@ -27,19 +27,19 @@ static void setTimeZone(long offset, int daylight) {
   char tz[33] = {0};
 
   if (offset % 3600) {
-    sprintf(cst, "UTC%ld:%02u:%02u", offset / 3600, abs((offset % 3600) / 60), abs(offset % 60));
+    snprintf(cst, sizeof(cst), "UTC%ld:%02u:%02u", offset / 3600, abs((offset % 3600) / 60), abs(offset % 60));
   } else {
-    sprintf(cst, "UTC%ld", offset / 3600);
+    snprintf(cst, sizeof(cst), "UTC%ld", offset / 3600);
   }
   if (daylight != 3600) {
     long tz_dst = offset - daylight;
     if (tz_dst % 3600) {
-      sprintf(cdt, "DST%ld:%02u:%02u", tz_dst / 3600, abs((tz_dst % 3600) / 60), abs(tz_dst % 60));
+      snprintf(cdt, sizeof(cdt), "DST%ld:%02u:%02u", tz_dst / 3600, abs((tz_dst % 3600) / 60), abs(tz_dst % 60));
     } else {
-      sprintf(cdt, "DST%ld", tz_dst / 3600);
+      snprintf(cdt, sizeof(cdt), "DST%ld", tz_dst / 3600);
     }
   }
-  sprintf(tz, "%s%s", cst, cdt);
+  snprintf(tz, sizeof(tz), "%s%s", cst, cdt);
   setenv("TZ", tz, 1);
   tzset();
 }