c# SWIG generated proxy classes do not compile in version 4.1.0

[aleksei-oecd]

static method SwigConstructExternalSigner in ExternalSigner.cs file has a reference to this as parameter in line 52 that is wrong in a static method.

[metsma]

Test PR #663

[aleksei-oecd]

is there any pipeline with prebuild classes ?

[metsma]

https://github.com/open-eid/libdigidocpp/actions/runs/13517113012

[aleksei-oecd]

worked perfectly with 4.2.0, can be closed