Regenerate bindings headers

Author: TheBlueMatt

lightning-c-bindings/include/lightning.h

@@ -198,7 +198,10 @@ typedef enum LDKSecp256k1Error {
  * `data_is_owned` either set or unset at your discretion.
  */
 typedef struct LDKTransaction {
-   const uint8_t *data;
+   /**
+    * This is non-const for your convenience, an object passed to Rust is never written to.
+    */
+   uint8_t *data;
    uintptr_t datalen;
    bool data_is_owned;
 } LDKTransaction;