Chris Pickett

### First check - [X] I added a descriptive title to this issue. - [X] I used the GitHub search to find a similar issue and didn't find it. -...

Add support for multiple schedules to Prefect server and CLI

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This updates Prefect server to know about multiple schedules, handle backwards-compatibility, and adds a CLI for managing schedules. Note: All of the code in this PR has been previously reviewed...

Bump pytest to 8.0

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### First check - [X] I am a contributor to the Prefect codebase ### Description pytest 8.0 was just released and added some deprecations that affect the Prefect test suite....

### First check - [X] I added a descriptive title to this issue. - [X] I used the GitHub search to find a similar request and didn't find it. -...

`test_regression_3803_positive_case_no_relevant_event` is flaky

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### First check - [X] I am a contributor to the Prefect codebase ### Description I had the `test_regression_3803_positive_case_no_relevant_event` test fail in a pull request, looks like a test flake:...

### First check - [X] I am a contributor to the Prefect codebase ### Description The `test_batched_queue_service_min_interval` uses a 10 second window for the test to pass, and under high...