Tests: the two quoted-parallel import tests fail on the 26.12.1-SNAPSHOT engine since arcadedb#11367 was fixed #376

Two tests of tests/test_import_database.py fail on every pull request since 2026-11-11 19:30 UTC, on every leg of test-jvm.yml (linux amd64 and arm64, macOS, Windows): test_import_database_csv_documents_with_quoted_parallel_setting and test_import_database_csv_graph_vertices_and_edges_with_quoted_parallel. Both end in assert 'OK' == 'FAIL' on the row of the IMPORT DATABASE result.

The cause is on main, not in the pull requests: the tests pin the refusal of a backtick-quoted setting name on every engine from 26.12.1 on (QUOTED_PARALLEL_REFUSED_SINCE = (26, 12, 1), the comment above it says they go back when ArcadeData/arcadedb#11367 is fixed). That issue was fixed by ArcadeData/arcadedb#11441 (merge 4dc44565cf, 2026-11-11 19:30 UTC), so the 26.12.1-SNAPSHOT engine that the JVM lane pulls now answers OK for `parallel` = 1, as 26.11.1 does. The last runs of the workflow on main (push 2026-11-11 02:31 UTC, nightly 03:03 UTC) were green because they ran before the fix, so the next nightly run of main will be red too.

Seen on the same two tests in the failed legs of #372 and #373, neither of which touches the importer.

Proposal: delete the version gate (QUOTED_PARALLEL_REFUSED_SINCE, _quoted_parallel_refused, and _engine_version if nothing else uses it) and the two if lines that call it, so both tests assert OK and the count on every engine. That is what the comment above the gate promises, and both 26.11.1 and the fixed snapshot give OK. I have not opened a PR, so that whoever owns the lane can pick it up. I can open it if that helps.