bug#52083: [core-updates-frozen] agg fails to build

[Mathieu Othacehe]

Hello,

> ../include/agg_renderer_outline_aa.h:1378:45: error: binding reference of 
> type ‘agg::line_profile_aa&’ to ‘const agg::line_profile_aa’ discards 
> qualifiers
>  1378 |         line_profile_aa& profile() { return *m_profile; }

Fixed with f22dfba53032c59fb260173143abf0e4e9a4f1e1.

Thanks,

Mathieu