Fix fleet provisioning samples (#835)

Author: sfod

samples/service_clients/fleet_provisioning/provision-basic/main.cpp

@@ -208,7 +208,7 @@ int main(int argc, char *argv[])
         [&createKeysResultPromise](CreateKeysAndCertificateResult &&result)
         { createKeysResultPromise.set_value(std::move(result)); });
 
-    const auto &createKeysResult = createKeysResultPromise.get_future().get().value();
+    auto createKeysResult = createKeysResultPromise.get_future().get().value();
     if (!createKeysResult.IsSuccess())
     {
         s_onServiceError(createKeysResult.GetError(), "create-keys-and-certificate");
@@ -248,7 +248,7 @@ int main(int argc, char *argv[])
         [&registerThingResultPromise](RegisterThingResult &&result)
         { registerThingResultPromise.set_value(std::move(result)); });
 
-    const auto &registerThingResult = registerThingResultPromise.get_future().get().value();
+    auto registerThingResult = registerThingResultPromise.get_future().get().value();
     if (!registerThingResult.IsSuccess())
     {
         s_onServiceError(registerThingResult.GetError(), "register-thing");

samples/service_clients/fleet_provisioning/provision-csr/main.cpp

@@ -220,7 +220,7 @@ int main(int argc, char *argv[])
         [&createFromCsrResultPromise](CreateCertificateFromCsrResult &&result)
         { createFromCsrResultPromise.set_value(std::move(result)); });
 
-    const auto &createFromCsrResult = createFromCsrResultPromise.get_future().get().value();
+    auto createFromCsrResult = createFromCsrResultPromise.get_future().get().value();
     if (!createFromCsrResult.IsSuccess())
     {
         s_onServiceError(createFromCsrResult.GetError(), "create-certificate-from-csr");
@@ -263,7 +263,7 @@ int main(int argc, char *argv[])
         [&registerThingResultPromise](RegisterThingResult &&result)
         { registerThingResultPromise.set_value(std::move(result)); });
 
-    const auto &registerThingResult = registerThingResultPromise.get_future().get().value();
+    auto registerThingResult = registerThingResultPromise.get_future().get().value();
     if (!registerThingResult.IsSuccess())
     {
         s_onServiceError(registerThingResult.GetError(), "register-thing");