Add `--github-owned-storage` Generate script capabilities + int tests

[begonaguereca]

Closes https://github.ghe.com/github/octoshift/issues/9592!

In order to add Integration tests for the Github owned storage work we needed to add --use-github-storage to the GenerateScript command.

1. Add --use-github-storage to the GenerateScript command
2. Update integration tests to use --use-github-storage command

• [ ] Did you write/update appropriate tests
• [ ] Release notes updated (if appropriate)
• [ ] Appropriate logging output
• [ ] Issue linked
• [ ] Docs updated (or issue created)
• [ ] New package licenses are added to ThirdPartyNotices.txt (if applicable)

[github-actions[bot]]

Unit Test Results

0 tests   0 ✅  0s ⏱️ 0 suites  0 💤 0 files    0 ❌

Results for commit 38d1ad17.

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

Package	Line Rate	Branch Rate	Complexity	Health
gei	80%	71%	542	✔
ado2gh	84%	78%	627	✔
Octoshift	87%	76%	1298	✔
bbs2gh	79%	74%	666	✔
Summary	83% (7014 / 8401)	75% (1571 / 2090)	3133	✔