fixing double couting of CMB lensing bins

[arthurmloureiro]

Description

Fixes the double counting problem introduced by me for the CMB Lensing tracer.

Fixes #606
Discussion: # (link)

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

The following checklist will make sure that you are following the code style and
guidelines of the project as described in the
contributing page.

• I have run bash pre-commit-check and fixed any issues
• I have added tests that prove my fix is effective or that my feature works
• I have made corresponding changes to the documentation
• I have 100% test coverage for my changes (please check this after the CI system has verified the coverage)

[arthurmloureiro]

@marcpaterno @vitenti the failure in CI seems to be the error I see at least twice a day across different codebases these days:

FAILED tests/metadata/test_metadata_two_point_types.py::test_match_name_type_require_convention_lens - assert not True
FAILED tests/metadata/test_metadata_two_point_types.py::test_match_name_type_require_convention_source - assert not True
FAILED tests/test_bug_413.py::test_calculate_pk - AttributeError: module 'numpy' has no attribute 'trapz'

AttributeError: module 'numpy' has no attribute 'trapz'

[vitenti]

@arthurmloureiro is this coming from FASTPT? We noticed this problem in FASTPT and for this reason in our conda environment we had to restrict numpy version since it uses a deprecated interface.

[arthurmloureiro]

@arthurmloureiro is this coming from FASTPT? We noticed this problem in FASTPT and for this reason in our conda environment we had to restrict numpy version since it uses a deprecated interface.

No clue where this is coming from =/