Allow GitHub App SSH username for SCM URLs

[keepittechie]

SUMMARY

Backports the relevant ansible/awx#15807 SCM URL validation behavior so GitHub App SSH URLs using x-access-token pass special Git host validation.

Fixes #292.

ISSUE TYPE

• Bug, Docs Fix or other nominal change

COMPONENT NAME

• API

ADDITIONAL INFORMATION

Tests:

• py.test awx/main/tests/unit/utils/test_common.py -k update_scm_url
• 38 passed, 50 deselected

Hoping I did the pull request correct. Let me know if you need any more information.

[Copilot]

Pull request overview

This PR backports SCM URL validation logic in awx/main/utils/common.py to allow GitHub App-style SSH URLs using the x-access-token username to pass “special git host” validation, and updates unit tests accordingly.

Changes:

• Updates update_scm_url() special-case handling for GitHub/Bitbucket SSH URLs to allow x-access-token as an SSH username.
• Expands host classification logic to include *.github.com / Bitbucket-related host patterns.
• Updates unit tests for SSH username validation expectations and adds a test case for x-access-token-style URLs.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
awx/main/utils/common.py	Adjusts SSH host/user validation rules for Git SCM URLs, aiming to allow GitHub App SSH username patterns.
awx/main/tests/unit/utils/test_common.py	Updates/extends unit tests covering update_scm_url() special SSH handling and expected validation errors.

[keepittechie]

Thanks for the review. I updated the branch to split GitHub and Bitbucket host detection, guard parts.hostname before suffix checks, keep the x-access-token exception limited to GitHub hosts, and restore the original Bitbucket git-only validation messages.

I also removed the extra positive test case that was not in the upstream AWX PR.

Re-tested with:

py.test awx/main/tests/unit/utils/test_common.py -k update_scm_url

Result: 37 passed, 50 deselected.