MLECO-4072: update MLEK dependencies to 23.08

* version updates in cmakelists file
* update submodules to 23.08 versions
* updates to documentation - vela 3.9.0

Change-Id: I5e24d5729ecbd2289b04fcc845fb44f455ab38d5
Signed-off-by: Nina Drozd <nina.drozd@arm.com>
diff --git a/source/application/api/common/source/Model.cc b/source/application/api/common/source/Model.cc
index da8f46b..b344a53 100644
--- a/source/application/api/common/source/Model.cc
+++ b/source/application/api/common/source/Model.cc
@@ -193,7 +193,7 @@
     for (size_t i = 0; i < nOperators; ++i) {
         const tflite::Operator* op         = subgraph->operators()->Get(i);
         const tflite::OperatorCode* opcode = opcodes->Get(op->opcode_index());
-        const TfLiteRegistration_V1* reg      = nullptr;
+        const TFLMRegistration* reg        = nullptr;
 
         tflite::GetRegistrationFromOpCode(opcode, this->GetOpResolver(), &reg);
         std::string opName;