Add example about TIMEOUT format to man page

Merge `70-iplist*` tests and add `start=no` test case

Changelog: add entry for `merge=no`, matching `start=no`

Merge pull request #180 from allixx/add-iplist-space-separated-default-options

Add iplist{} space-separated default options support

Test iplist hostname resolve with "localhost"

Test reading iplist values from file to cache, and adding them to ruleset

Fix traceback on iplist hostname resolve

Add set and list support to TypedConfig, use them for rpfilter and counter

ruff format src/foomuuri

Remove pycodestyle, ruff is enough (and partly conflicting)

ruff format src/tests

ruff format prometheus-foomuuri-exporter

Don't require prometheus_client library on github action / development

Split `make test` to `make test` and `make lint` parts