v48

• Fixed memory leak when adding an action (.RETURN, .SIDE_EFFECT, etc)
  throws. Thank you @DNKpp for the fix.

• Dropped older compilers from CI builds (gcc <= 6 and clang <= 7) since
  GitHub actions now require node-20, and no build environment is
  currently available that both supports node-20 and older compilers.

• Support for STDMETHOD functions for COM. Thank you @cesenaLA for
  the implementation, and @puetzk for the discussions. This adds new macros:

  MAKE_STDMETHOD_MOCKn(...)
  IMPLEMENT_STDMETHOD_MOCKn(...)

• Fixed issue with std::expected causing compilation error. Thank you
  @subbota-a for reporting

• Silenced gcc -Weffc++ warnings. Thanks @svenihoney for the report