fix(protocol): fix bridge prove message issue using staticcall

[dantaik]

Previously proveSignalReceived in signalService is a view function, but now it can cache data so it's no longer a view function. Therefore, in Bridge.sol, we can no longer use staticcall.

[adaki2004]

Previously proveSignalReceived in signalService is a view function, but now it can cache data so it's no longer a view function. Therefore, in Bridge.sol, we can no longer use staticcall.

How could it work even on an internal devnet ? Or simply we never cached the data, that was it ?

[dantaik]

Previously proveSignalReceived in signalService is a view function, but now it can cache data so it's no longer a view function. Therefore, in Bridge.sol, we can no longer use staticcall.

How could it work even on an internal devnet ? Or simply we never cached the data, that was it ?

The relayer did not enable caching.