Fix Linux test failures

Code/Framework/Tests/BehaviorEntityTests.cpp

@@ -12,6 +12,7 @@
 
 #include "FrameworkApplicationFixture.h"
 #include <AzCore/Component/Component.h>
+#include <AzCore/Settings/SettingsRegistryMergeUtils.h>
 #include <AzFramework/Entity/BehaviorEntity.h>
 #include <AzFramework/Entity/GameEntityContextBus.h>
 
@@ -88,6 +89,12 @@ class BehaviorEntityTest
 protected:
     void SetUp() override
     {
+        AZ::SettingsRegistryInterface* registry = AZ::SettingsRegistry::Get();
+        auto projectPathKey =
+            AZ::SettingsRegistryInterface::FixedValueString(AZ::SettingsRegistryMergeUtils::BootstrapSettingsRootKey) + "/project_path";
+        registry->Set(projectPathKey, "AutomatedTesting");
+        AZ::SettingsRegistryMergeUtils::MergeSettingsToRegistry_AddRuntimeFilePaths(*registry);
+
         m_appDescriptor.m_enableScriptReflection = true;
         FrameworkApplicationFixture::SetUp();