[tuya] Replace unsafe sprintf with snprintf in light color formatting

esphome/components/tuya/light/tuya_light.cpp

@@ -191,7 +191,7 @@ void TuyaLight::write_state(light::LightState *state) {
       case TuyaColorType::RGB: {
         char buffer[7];
         const char *format_str = this->color_type_lowercase_ ? "%02x%02x%02x" : "%02X%02X%02X";
-        sprintf(buffer, format_str, int(red * 255), int(green * 255), int(blue * 255));
+        snprintf(buffer, sizeof(buffer), format_str, int(red * 255), int(green * 255), int(blue * 255));
         color_value = buffer;
         break;
       }
@@ -201,7 +201,7 @@ void TuyaLight::write_state(light::LightState *state) {
         rgb_to_hsv(red, green, blue, hue, saturation, value);
         char buffer[13];
         const char *format_str = this->color_type_lowercase_ ? "%04x%04x%04x" : "%04X%04X%04X";
-        sprintf(buffer, format_str, hue, int(saturation * 1000), int(value * 1000));
+        snprintf(buffer, sizeof(buffer), format_str, hue, int(saturation * 1000), int(value * 1000));
         color_value = buffer;
         break;
       }
@@ -211,8 +211,8 @@ void TuyaLight::write_state(light::LightState *state) {
         rgb_to_hsv(red, green, blue, hue, saturation, value);
         char buffer[15];
         const char *format_str = this->color_type_lowercase_ ? "%02x%02x%02x%04x%02x%02x" : "%02X%02X%02X%04X%02X%02X";
-        sprintf(buffer, format_str, int(red * 255), int(green * 255), int(blue * 255), hue, int(saturation * 255),
-                int(value * 255));
+        snprintf(buffer, sizeof(buffer), format_str, int(red * 255), int(green * 255), int(blue * 255), hue,
+                 int(saturation * 255), int(value * 255));
         color_value = buffer;
         break;
       }

esphome/components/uart/uart_debugger.cpp

@@ -107,7 +107,7 @@ void UARTDebug::log_hex(UARTDirection direction, std::vector<uint8_t> bytes, uin
     if (i > 0) {
       res += separator;
     }
-    buf_append_printf(buf, sizeof(buf), 0, "%02X", bytes[i]);
+    sprintf(buf, "%02X", bytes[i]);
     res += buf;
   }
   ESP_LOGD(TAG, "%s", res.c_str());
@@ -147,7 +147,7 @@ void UARTDebug::log_string(UARTDirection direction, std::vector<uint8_t> bytes)
     } else if (bytes[i] == 92) {
       res += "\\\\";
     } else if (bytes[i] < 32 || bytes[i] > 127) {
-      buf_append_printf(buf, sizeof(buf), 0, "\\x%02X", bytes[i]);
+      sprintf(buf, "\\x%02X", bytes[i]);
       res += buf;
     } else {
       res += bytes[i];
@@ -166,13 +166,11 @@ void UARTDebug::log_int(UARTDirection direction, std::vector<uint8_t> bytes, uin
   } else {
     res += ">>> ";
   }
-  char buf[4];  // max 3 digits for uint8_t (255) + null
   for (size_t i = 0; i < len; i++) {
     if (i > 0) {
       res += separator;
     }
-    buf_append_printf(buf, sizeof(buf), 0, "%u", bytes[i]);
-    res += buf;
+    res += to_string(bytes[i]);
   }
   ESP_LOGD(TAG, "%s", res.c_str());
   delay(10);
@@ -191,7 +189,7 @@ void UARTDebug::log_binary(UARTDirection direction, std::vector<uint8_t> bytes,
     if (i > 0) {
       res += separator;
     }
-    buf_append_printf(buf, sizeof(buf), 0, "0b" BYTE_TO_BINARY_PATTERN " (0x%02X)", BYTE_TO_BINARY(bytes[i]), bytes[i]);
+    sprintf(buf, "0b" BYTE_TO_BINARY_PATTERN " (0x%02X)", BYTE_TO_BINARY(bytes[i]), bytes[i]);
     res += buf;
   }
   ESP_LOGD(TAG, "%s", res.c_str());