Add Windows CI workaround

Author: franzpoeschel

src/IO/ADIOS/ADIOS2IOHandler.cpp

@@ -2206,7 +2206,9 @@ namespace detail
         : m_file(impl.fullPath(std::move(file)))
         , m_IOName(std::to_string(impl.nameCounter++))
         , m_ADIOS(impl.m_ADIOS)
-        , m_IO(impl.m_ADIOS.DeclareIO(m_IOName))
+        // Need this prefix since in some situation there seems to be trouble
+        // with number-only IO names
+        , m_IO(impl.m_ADIOS.DeclareIO("IO_" + m_IOName))
         , m_mode(impl.adios2AccessMode(m_file))
         , m_impl(&impl)
         , m_engineType(impl.m_engineType)