Replace Geo IP database used in testing with dummy data

[jsoriano]

Find or prepare a new Geo IP database that contains some sample data at least for the ip ranges reserved for documentation.

Current database is a reduced sample database, that contains information for public IPs, but doesn't contain information for IPs in the documentation ranges. We want to start migrating everything to these ranges in tests.

We need to think on a migration path for the integrations repository, because changing this database will break tests.

See discussion in #2408

[colin-stubbs]

@jsoriano thanks! I've dumped everything into a blog post re: generating the GeoLite2 dummy test databases.

https://routedlogic.net/blog/2025/02/15/creating-custom-mmdb-files

Given the source for the .mmdb's is simply JSON files, it'd be pretty easy to customise further. If multiple different responses were needed simply CIDR subnetting 0.0.0.0/0 and ::/0 into different chunks would work, e.g. 0.0.0.0/1 and 128.0.0.0/1 etc, and ::0/1 and 8000::0/1

[jsoriano]

Wow, nice, thanks for the detailed instructions! This will be definitely useful to solve this issue.