Update write function parameter to const uint8_t pointer.

- Update the write function parameter to accept a constant uint8_t pointer for improved data integrity and security.

Author: f-hoepfinger-hr-agrartechnik

libraries/ESP_I2S/src/ESP_I2S.h

@@ -62,7 +62,7 @@ class I2SClass : public Stream {
   bool end();
 
   size_t readBytes(char *buffer, size_t size);
-  size_t write(uint8_t *buffer, size_t size);
+  size_t write(const uint8_t *buffer, size_t size);
 
   i2s_chan_handle_t txChan();
   uint32_t txSampleRate();