Update prefect requirement from >=3.0.0 to >=3.7.7

[dependabot]

Updates the requirements on prefect to permit the latest version.

Commits

• 743957b docs: document cronstrue/croniter divergence guard in components AGENTS.md (#...
• 571ba03 Reconcile stale work-pool snapshots on worker heartbeat (#22429)
• a3cddb8 chore(deps): bump the ui-v2-dependencies group across 1 directory with 38 upd...
• 8798ccf fix(ui-v2): prevent date picker from jumping when switching months (#22431)
• 5185144 Send workspace resolver pull step logs to the API (#22432)
• 4207e99 chore(deps-dev): bump the eslint group in /ui-v2 with 2 updates (#22423)
• 9126654 chore(deps): bump the uv-dependencies group with 6 updates (#22427)
• ab6a0dc [Bug] ECS observer leaves runs PENDING when capacity provider can't place tas...
• b97b6a5 Reject server-diverging cron slash-step expressions in the deployment schedul...
• d04a7c8 fix(prefect-redis): return a definite bool from write_path/awrite_path
• Additional commits viewable in compare view

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Note

Raise minimum prefect dependency version from >=3.0.0 to >=3.7.7

Updates the version constraint in pyproject.toml. No code changes are included.

^{Macroscope summarized 080b6a8.}

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.