Add new parameter to KubeloginInstallerV0 to authorize request to github to avoid request limits on unauthorized requests

[mispencer]

Task name: KubeloginInstallerV0

Description: This task makes requests to the GitHub API to fetch the url to download. Currently, these requests are unauthorized. However, the GitHub API has low rate limits on unauthorized requests, so these requests can fail which in turn causes the task run to fail. This PR adds a new parameter to allow the user to supply a Github Service Connection that is used to authorize these requests. Authorized requests have a much higher rate limit, thus providing authorization makes this issue much less likely to occur.

Documentation changes required: Y

Added unit tests: N

Attached related issue: (Y/N) #19097

Checklist:

• Task version was bumped - please check instruction how to do it
• Checked that applied changes work as expected

[mispencer]

@microsoft-github-policy-service agree company="Tyler Technologies"