[ci] Replace PyGithub with GitHubClient in get_contributors.py

[andrew-anyscale]

Use GitHubClient.get_repo().get_pull() instead of the PyGithub
Github/repo.get_pull() calls.

Topic: remove-pygithub-ci
Relative: remove-pygithub-release
Labels: draft
Signed-off-by: andrew andrew@anyscale.com

[andrew-anyscale]

Reviews in this chain:
└#61708 [release] Fix requirements_py310.update to use hermetic Python 3.10
　├#61709 [release] Add GitHubClient to replace PyGithub dependency
　│└#61710 [release] Replace PyGithub with GitHubClient in ray_release
　│　└#61711 [ci] Replace PyGithub with GitHubClient in get_contributors.py
　│　　└#61712 [release] Remove PyGithub from requirements
　└#61713 [release] Restrict requirements_py310 targets to amd64 Linux

[andrew-anyscale]

#	head	base	diff	date	summary
0	8f7ea696	24aa485b	diff	Mar 12 20:07 PM	2 files changed, 5 insertions(+), 5 deletions(-)
1	beeb8827	6e6f1542	rebase	Mar 12 20:13 PM	0 files changed
2	ea5c3da7	2218a9c7	rebase	Mar 13 6:58 AM	0 files changed
3	12ca704e	872d93c1	rebase	Mar 13 7:02 AM	0 files changed
4	586fa5cd	df424e31	rebase	Mar 13 8:13 AM	0 files changed
5	4a0b5940	d842bf04	rebase	Mar 13 8:23 AM	0 files changed

[gemini-code-assist]

Code Review

This pull request replaces the PyGithub dependency with a local GitHubClient in the get_contributors.py script. The changes are correct and achieve the goal of this refactoring. I've added a couple of comments to get_contributors.py to improve readability and make the error handling more specific and robust following the client change.

[gemini-code-assist]

With the switch to GitHubClient, ray_repo.get_pull() will now raise GitHubException on API errors. The exception handling in the loop on lines 102-105 should be updated to catch this specific exception instead of the broad Exception. This will make the error handling more robust and prevent masking other potential issues.

[gemini-code-assist]

For better readability and to follow common practice, it's recommended to first instantiate the GitHubClient into a variable and then use it. This makes the code easier to understand and debug.

Suggested change

	ray_repo = GitHubClient(access_token).get_repo("ray-project/ray")
	client = GitHubClient(access_token)
	ray_repo = client.get_repo("ray-project/ray")