fix: dont show warning message for toml-defined scheduled functions

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Summary

This PR fixes a bug discovered by @minivan, where our warning message was off when a toml-defined scheduled function was invoked with functions:invoke.

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📊 Benchmark results

Comparing with 0550e60

Package size: 360 MB

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• T-30 (0550e60): 360 MB
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• T-10 (b41c4c9): 360 MB
• T-9 (918d1ad): 360 MB
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• T-6 (a50c4d9): 359 MB
• T-5 (d588dd2): 359 MB
• T-4 (f66cb40): 359 MB
• T-3 (647647b): 359 MB
• T-2 (372a438): 359 MB
• T-1 (8c8cb84): 359 MB
• T (current commit): 360 MB