[BUG]: IWYU broken in CI & locally

[dagardner-nv]

Version

24.03

Which installation method(s) does this occur on?

Source

Describe the bug.

IWYU is failing to run, but exiting 0

Minimum reproducible example

./ci/scripts/run_iwyu_for_ci.sh -p /home/dagardner/work/morpheus/build -j 64 morpheus/_lib/src/stages/deserialize.cpp morpheus/_lib/stages/module.cpp

### Relevant log output

<details><summary>Click here to see error details</summary><pre>

 [Paste the error here, it will be hidden by default]

</pre></details>


### Full env printout

<details><summary>Click here to see environment details</summary><pre>
/home/conda/feedstock_root/build_artifacts/include-what-you-use_1693400489966/work/iwyu_include_picker.cc:1283: Assertion failed: (*map)[key] == visibility Same file seen with two different visibilities: <pybind11/cast.h> Old vis: 2 New vis: 1

/home/conda/feedstock_root/build_artifacts/include-what-you-use_1693400489966/work/iwyu_include_picker.cc:1283: Assertion failed: (*map)[key] == visibility Same file seen with two different visibilities: <pybind11/cast.h> Old vis: 2 New vis: 1
</pre></details>


### Other/Misc.

_No response_

### Code of Conduct

- [X] I agree to follow Morpheus' Code of Conduct
- [X] I have searched the [open bugs](https://github.com/nv-morpheus/Morpheus/issues?q=is%3Aopen+is%3Aissue+label%3Abug) and have found no duplicates for this bug report

[dagardner-nv]

Looks like its our mapping file
include-what-you-use/include-what-you-use#1445