feat: add metadata and onError to edge functions

[eduardoboucas]

Summary

This PR contains the following changes:

• Starts sending the invocation metadata object to the isolate via a header
• Starts sending select feature flags to the isolate via a header (currently only edge_functions_bootstrap_failure_mode)
• Updates the bootstrap layer version

[github-actions]

📊 Benchmark results

Comparing with f437d30

Package size: 264 MB

⬆️ 0.01% increase vs. f437d30

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└───┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴────┴──┴──>
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Legend

• T-30 (08ac5d7): 263 MB
• T-29 (bd9823e): 263 MB
• T-28 (f563cc7): 263 MB
• T-27 (ff8f62c): 270 MB
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• T-22 (c8bebcb): 270 MB
• T-21 (8284995): 263 MB
• T-20 (b4d888b): 263 MB
• T-19 (2c99006): 270 MB
• T-18 (bed6971): 270 MB
• T-17 (8cbed0f): 270 MB
• T-16 (961345a): 270 MB
• T-15 (20f6a2f): 270 MB
• T-14 (12d0a5c): 270 MB
• T-13 (7781a39): 270 MB
• T-12 (79368f0): 271 MB
• T-11 (cc56995): 264 MB
• T-10 (b45ca20): 271 MB
• T-9 (71e43e8): 271 MB
• T-8 (4a4d2a3): 264 MB
• T-7 (93e6f02): 264 MB
• T-6 (be1f66d): 264 MB
• T-5 (e337907): 271 MB
• T-4 (694d005): 271 MB
• T-3 (e118555): 271 MB
• T-2 (618a41e): 264 MB
• T-1 (f437d30): 264 MB
• T (current commit): 264 MB