Fix opsgenie plugin to use correct annotation to determine whether or not to create alerts

[EdwardDowling]

Closes #37318
The Opsgenie plugin was mixing up the two annotations it checks causing alerts to be created when /schedules was set even though notify-services was not

changelog: Fixes Opsgenie plugin creating alerts based on incorrect annotation. Action Required for Opsgenie plugin users

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[ptgott]

We should also edit the table here: https://docs-fpnxy7lqe-goteleport.vercel.app/docs/access-controls/access-requests/access-request-configuration/#plugins-that-support-request-annotations

[EdwardDowling]

We should also edit the table here: https://docs-fpnxy7lqe-goteleport.vercel.app/docs/access-controls/access-requests/access-request-configuration/#plugins-that-support-request-annotations

The table there actually seems to be correct, think the mixup only happened here.

[hugoShaka]

Do we want to put an "Action Required for opsgenie plugin users" or something in the changelog? So they can check if they got the right version and annotation.

Also, is this flagged as a security fix? From what I understand, the plugin allowed users to escalate even if they were not on-call for the correct service.

[EdwardDowling]

Do we want to put an "Action Required for opsgenie plugin users" or something in the changelog? So they can check if they got the right version and annotation.

Also, is this flagged as a security fix? From what I understand, the plugin allowed users to escalate even if they were not on-call for the correct service.

The schedules checked for auto approval should still be the ones from /schedules the issues was that these were also used as the ones to notify.

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[public-teleport-github-review-bot]

@EdwardDowling See the table below for backport results.

Branch	Result
branch/v14	Create PR
branch/v15	Create PR