Upgrade setuptools to 78.1.1

[aemous]

Issue #, if available:

• aws-cli built from source gets flagged for CVE-2025-47273 #9758

Description of changes:

• Upgrade setuptools to version 78.1.1.

Description of tests:

• Ran the /scripts/ci/install-dev-deps script and verified it successfully executed.
• Ran and passed all expected tests under /tests/functional using PyTest on Python 3.12.

Resources:

This PR reflects the last PR that updates setuptools: #8821

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.33%. Comparing base (68039fa) to head (62c733a).
⚠️ Report is 302 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #9773      +/-   ##
===========================================
- Coverage    93.40%   93.33%   -0.07%     
===========================================
  Files          211      209       -2     
  Lines        17012    16807     -205     
===========================================
- Hits         15890    15687     -203     
+ Misses        1122     1120       -2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.