CI: stabilize test_entry_with_escaped_characters_fails_to_import_and_index on bdb #7903

Issue Description
on BDB a reader can fail with too many retries (DBI_DB_RETRY).
It produces an error in logs like

ERR - build_candidate_list - Database error -12795

A test case looking for 'error' string in error log may exit on a false negative.

Package Version and Platform:

• on BDB

Steps to Reproduce
Problem is transient.

Expected results
The test looking for 'error' in indexing should not fail for a Database error