Fix fc impl

FC Operator has been changed in aidge_core!129 (merged) to remove the necessity to specify an outChannels attribute. It can now be accessed via a member function.

src/operator/FCImpl.cpp

@@ -30,7 +30,7 @@ void Aidge::FCImpl_cuda::forward() {
 
     const auto& fcOp = static_cast<const FC_Op&>(mOp);
     bool noBias = fcOp.template getAttr<FCAttr::NoBias>();
-    std::size_t outChannels = static_cast<std::size_t>(fcOp.template getAttr<FCAttr::OutChannels>());
+    std::size_t outChannels = fcOp.outChannels();
 
     const auto& input0 = fcOp.getInput(0)->refCastFrom(mInput0Fallback, *fcOp.getOutput(0));
     const auto& input1 = fcOp.getInput(1)->refCastFrom(mInput1Fallback, *fcOp.getOutput(0));
@@ -114,4 +114,4 @@ void Aidge::FCImpl_cuda::forward_(const Tensor& input0, const Tensor& input1, co
         cudaFree(onesVector);
     }
 
-}
\ No newline at end of file
+}