[update] i2pd-2.46.1

Hi,

Here is a patch to update net/i2pd to the latest version (2.46.1).
I have experienced crashes with 2.46.0, which seem to be addressed
with this latest release.

The release notes state the following fixes:

- Race condition while getting router's peer profile
- Creation of new router.info
- Displaying LeaseSets in the webconsole
- Crash when processing ACK request

Can this be backported to -stable, due to 2.46.0 crashing frequently?

-Angelo