fix(docs): rename mkdocstrings 'import' option to 'inventories'

[Bojun-Vvibe]

Closes #272

Repo

openzim/python-scraperlib

Issue

#272

Root cause

The Read the Docs build runs hatch run docs:build which invokes mkdocs build. The mkdocstrings-python handler (pinned at mkdocstrings[python]==0.30.1) renamed its configuration key import to inventories; the old name now raises TypeError: PythonConfig.__init__() got an unexpected keyword argument 'import', causing every RTD build (including 5.3.0 publication) to fail.

Fix

Renamed the import: key under plugins.mkdocstrings.handlers.python in mkdocs.yml to inventories:, keeping the same value (https://docs.python.org/3/objects.inv).

Regression test

None added — the bug is purely in the static mkdocs.yml configuration; the project has no test suite for documentation config. Validation is via mkdocs build succeeding on Read the Docs (or locally inside the docs hatch env).

Risk

trivial

Verification

skipped: full validation requires installing the docs hatch env (mkdocs + mkdocs-material + mkdocstrings + mkdocs-gen-files + literate-nav, etc.) which is heavy. Confirmed YAML still parses correctly via python3 -c "import yaml; yaml.safe_load(open('mkdocs.yml'))". The error message in the RTD build log (unexpected keyword argument 'import') and the upstream mkdocstrings-python rename of import -> inventories make the fix unambiguous.