Fix live tests CI compilation (unused variable warning - gets treated as error) (#4685)

* Fix live tests CI compilation (unused variable warning - gets treated as error)

* A warning popped up in opentelemetry due to header reordering

---------

Co-authored-by: Anton Kolesnyk <antkmsft@users.noreply.github.com>

sdk/core/azure-core-amqp/test/ut/claim_based_security_tests.cpp

@@ -79,8 +79,8 @@ TEST_F(TestCbs, CbsOpen)
     {
       ClaimsBasedSecurity cbs(session);
       cbs.SetTrace(true);
-      CbsOpenResult openResult;
-      EXPECT_EQ(CbsOpenResult::Ok, openResult = cbs.Open());
+      CbsOpenResult openResult = cbs.Open();
+      EXPECT_EQ(CbsOpenResult::Ok, openResult);
       GTEST_LOG_(INFO) << "Open Completed.";
       if (openResult == CbsOpenResult::Ok)
       {

sdk/core/azure-core-tracing-opentelemetry/test/ut/test_exporter.hpp

@@ -5,8 +5,17 @@
 
 #include <memory>
 
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable : 6323) // Disable "Use of arithmetic operator on Boolean type" warning.
+#endif
+
 #include <opentelemetry/sdk/trace/exporter.h>
 
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
 class RecordedSpan : public opentelemetry::sdk::trace::Recordable {
 public:
   struct Attribute