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