Run python doctest against scripts

[janniklasrose]

Changes

Run doctest against python scripts.

Remove import-time side-effect from gh_report.py.

Why

Agents already write doctests, now they run on checks (local & CI).

Allows (follow-up PRs) to add more test coverage to the scripts we use.

Tests

CI green. Existing doctest failed when modifying behaviour of a function locally.

[github-actions]

Waiting for approval

Based on git history, these people are best suited to review:

• @pietern -- recent work in ./
• @denik -- recent work in ./, tools/

Eligible reviewers: @andrewnester, @anton-107, @lennartkats-db, @rclarey, @renaudhartert-db, @rugpanov, @shreyas-goenka, @simonfaltum

_{Suggestions based on git history. See OWNERS for ownership rules.}

[eng-dev-ecosystem-bot]

Integration test report

Commit: 7d8f853

Run: 33088148453

	Env	🔄​flaky	💚​RECOVERED	🙈​SKIP	✅​pass	🙈​skip	Time
💚​	aws linux		1	4	274	1191	4:11
💚​	aws windows		1	4	276	1189	4:35
💚​	azure linux		1	4	273	1191	4:02
🔄​	azure windows	1		4	275	1189	6:51
💚​	gcp linux		1	4	274	1191	4:24
💚​	gcp windows		1	4	276	1189	4:39

	Test Name	aws linux	aws windows	azure linux	azure windows	gcp linux	gcp windows
🔄​	TestAccept	💚​R	💚​R	💚​R	🔄​f	💚​R	💚​R
🙈​	TestAccept/bundle/invariant/no_drift	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/bundle/resources/vector_search_endpoints/drift/recreated_same_name	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/bundle/resources/vector_search_indexes/recreate/embedding_dimension	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/ssh/connection	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S

Top 3 slowest tests (at least 2 minutes):

duration	env	testname
4:35	gcp windows	TestAccept
4:32	aws windows	TestAccept
3:42	azure windows	TestAccept