test: fix download tests for /bytes endpoint size limit

[koji-1009]

Due to the size limit set on the bytes endpoint, reduced and adjusted resource requests based on testing.

New Pull Request Checklist

• I have read the Documentation
• I have searched for a similar pull request in the project and found none
• I have updated this branch with the latest main branch to avoid conflicts (via merge from master or rebase)
• I have added the required tests to prove the fix/feature I'm adding
• I have updated the documentation (if necessary)
• I have run the tests without failures
• I have updated the CHANGELOG.md in the corresponding package

Additional context and info (if any)

[github-actions]

Code Coverage Report: Only Changed Files listed

Package	Base Coverage	New Coverage	Difference
Overall Coverage	🟢 85.59%	🟢 85.59%	⚪ 0%

Minimum allowed coverage is 0%, this run produced 85.59%

[AlexV525]

Thanks for fixing them!