Bugfixes
- Stopped package upload to parse the artifact twice.
[3183](https://github.com/pulp/pulp_rpm/issues/3183)
- Remove the non functional `retrieve` logic from advisories upload, fixing a bug that appeared
with pulpcore >= 3.29.
[3195](https://github.com/pulp/pulp_rpm/issues/3195)
- Made 0049 migration more robust in the face of unexpected data.
[3196](https://github.com/pulp/pulp_rpm/issues/3196)
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