Remove nose.tools dependency

Summary

The nose library is not maintained anymore and should be removed from the integration tests. Only simple one-liners from the nose.tools are used (assert_equal, assert_is_not_none, ...) that can easily be replaced with custom code.

Remove nose.tools from

• test_affiliation.py
• test_data_model_leap.py
• test_deletion.py
• test_file.py
• test_list.py
• test_manual.py
• test_name_properties.py
• test_permissions.py
• test_query_template.py
• test_records.py
• test_recordtypes.py
• test_xmlparsing.py

Expected Behavior

The integration tests should not rely on a deprecated library that doesn't work anymore with Python 3.12.

Specifications

• Version:
• Platform: any

Possible fixes

Use

def assert_equal(a, b):
    assert a == b

def assert_is_not_none(a):
    assert a is not None

def assert_false(a):
    assert not a

def assert_is_none(a):
    assert a is None