[Bug]: AS not assigned to measurement in miniooni

[DecFox]

OONI probe version: 3.23.0

A community member reported that the measurement AS (AS272809) is not assigned to the measurement when the test starts. It is assigned AS0 and does not show up in the OONI MAT.

...
[      0.102039] <info> httpsDialer: [#2] TCPConnect 162.55.247.208:443... started
[      0.246310] <info> httpsDialer: [#2] TCPConnect 162.55.247.208:443... ok
[      0.246438] <info> httpsDialer: [#2] TLSHandshake with 162.55.247.208:443 SNI=api.ooni.io ALPN=[h2 http/1.1]... started
[      0.416420] <info> httpsDialer: [#2] TLSHandshake with 162.55.247.208:443 SNI=api.ooni.io ALPN=[h2 http/1.1]... ok
[      0.416464] <info> httpsDialer: [#2] TLSVerifyCertificateChain api.ooni.io... started
[      0.422571] <info> httpsDialer: [#2] TLSVerifyCertificateChain api.ooni.io... ok
[      0.570003] <info> session: using probe services: {Address:https://api.ooni.io/ Type:https Front:}
[      0.570046] <info> Looking up your location; please be patient...
[      0.570092] <info> iplookup: using cloudflare
[      0.570636] <info> sessionresolver: lookup www.cloudflare.com using http3://cloudflare-dns.com/dns-query... started
[      0.611091] <info> sessionresolver: lookup www.cloudflare.com using http3://cloudflare-dns.com/dns-query... ok
[      1.671394] <info> - country: ...
[      1.671480] <info> - network:  (AS0)
[      1.671509] <info> - resolver's IP: 74.125.75.81
[      1.671539] <info> - resolver's network: Google LLC (AS15169)

This is only limited to miniooni and works well with ooniprobe

[Lanius-collaris]

The mmdb files in https://github.com/ooni/probe-assets may not contain the AS numbers of some IP prefixes ( try looking up IPs in prefix 123.90.0.0/16 with probe-assets 0.30.0 ), even if the country is included.