ensure persist dir created for quiesce tests

Some of the quiesce tests require the persist directory be available

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: Ibbe67e9ac2c51b0f718112161094904d2a0c6fd5
diff --git a/test/elog_quiesce_test.cpp b/test/elog_quiesce_test.cpp
index 6537485..4675073 100644
--- a/test/elog_quiesce_test.cpp
+++ b/test/elog_quiesce_test.cpp
@@ -3,6 +3,7 @@
 #include "elog_entry.hpp"
 #include "log_manager.hpp"
 
+#include <filesystem>
 #include <sdbusplus/bus.hpp>
 #include <sdbusplus/test/sdbus_mock.hpp>
 
@@ -25,6 +26,8 @@
 
     TestQuiesceOnError() : manager(mockedBus, OBJ_INTERNAL)
     {
+        // Ensure any errors serializing to filesystem have directory created
+        std::filesystem::create_directory(ERRLOG_PERSIST_PATH);
     }
 };