New connection timeout error breaks errormap

[jchapma]

Issue Description
A recent addition to the connection disconnect error messaging, conflicts with how errormap.c maps error strings

Package Version and Platform:

• Package and version: 389-ds-base main branch

Steps to Reproduce

1. Run import test

sudo pytest -s -v  ./dirsrvtests/tests/suites/import/import_test.py::test_entry_with_escaped_characters_fails_to_import_and_index

3. Tests fail because errormap logs an error to DS error logs, which are nothing to do with the import test

Expected results
No "error" in the DS error logs

Additional context
Introduced with #6096

[tbordaz]

If this PR applies to all the branches (#6096 (comment)) you may need to backport it there as well