Integration tests: add tests for encrypted named collections

[fm4v]

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• Not for changelog (changelog entry is not required)

Changelog entry (a user-readable short description of the changes that goes into CHANGELOG.md):

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Documentation entry for user-facing changes

• Documentation is written (mandatory for new features)

[clickhouse-gh]

Workflow [PR], commit [ddfb52d]

Summary: ❌

job_name	test_name	status	info	comment
Integration tests (amd_asan, flaky)		failure
	test_named_collections_encrypted2/test_integr.py::test_s3_multiple_formats[1-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_function_with_named_collection[1-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_shared_credentials_multiple_tables[2-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_table_engine_with_named_collection[1-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_with_overridable_params[1-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_function_with_named_collection[3-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_table_engine_with_named_collection[2-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_s3_table_function_with_overrides[1-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_cluster_with_named_collection[1-3]	FAIL	cidb	IGNORED
	test_named_collections_encrypted2/test_integr.py::test_url_cluster_with_named_collection[2-3]	FAIL	cidb	IGNORED
	8 more test cases not shown