[PR #6784/b6aaa239 backport][3.83] Fix RepositoryVersion.content query failing when >65K units

[patchback]

This is a backport of PR #6784 as merged into main (b6aaa23).

fixes: #6772

This is the orm magic breaks down to this sql:

SELECT *
FROM "core_content" 
WHERE "core_content"."pulp_id" IN (
    SELECT unnest(U0."content_ids") AS "cids" 
    FROM "core_repositoryversion" U0
    WHERE U0."pulp_id" = 01980713-3ed0-7f9a-b1f5-20e774f746ae
)