net/routinator: Update to 0.11.3

ChangeLog: https://github.com/NLnetLabs/routinator/releases

Fixes an issue in error handling in the RRDP collector that causes
Routinator to exit if it encountered malformed base r64 in RRDP snapshot
and delta files. (Found by Donika Mirdita and Haya Shulman. Assigned
CVE-2022-3029.)

PR: 266865
Reported by: jaap@NLnetLabs.nl (maintainer)
MFH: 2022Q4 (security fix release)
Security: CVE-2022-302

(cherry picked from commit 3488bf3779725a73032aeff271926dee14e10e70)