Log Message:
Upgrade net/routinator to version 0.13.2.

Pkgsrc changes:
 * Version bump + checksum updates.

Upstream changes:

0.13.2 -- "Existential Funk"

Released 2024-01-26.

Bug Fixes

* Fix the RTR listener so that Routinator won't exit if an
  incoming RTR connection is closed again too quickly. ([#937],
  reported by Yohei Nishimura, Atsushi Enomoto, Ruka Miyachi;
  Internet Multifeed Co., Japan.  Assigned [CVE-2024-1622].)

[#937]: https://github.com/NLnetLabs/routinator/pull/937
[CVE-2024-1622]: https://www.nlnetlabs.nl/downloads/routinator/CVE-2024-1622.txt