compile-perf: enable nightly schedule at 05:00 UTC

[jvepsalainen-nv]

The compile performance suite has been validated end-to-end on the nvrgfx-perf runner and the release history is seeded in shader-slang/slang-compile-perf. Enable the daily cron to start collecting tip-of-tree performance data.

[coderabbitai]

📝 Walkthrough

Walkthrough

The nightly compile-perf workflow's on.schedule trigger is re-enabled with a daily cron expression (0 5 * * *), restoring automated runs at 05:00 UTC. The previously disabled or commented-out schedule configuration is replaced by this active cron block.

Changes

Nightly Compile-Perf Schedule Restore

Layer / File(s)	Summary
Restore daily cron trigger .github/workflows/compile-perf-nightly.yml	on.schedule is added back with cron 0 5 * * *, replacing the disabled schedule so the workflow triggers automatically at 05:00 UTC daily rather than only on manual dispatch.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: enabling a nightly schedule for the compile-perf workflow at 05:00 UTC, which matches the workflow update from manual-only to automated daily scheduling.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The description clearly explains the purpose of enabling the daily cron schedule for the compile-perf suite, matching the changeset.

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[jkiviluoto-nv]

LGTM