chore: upgrade to nightly-2023-10-15 #1836

Job	Run time
Format	21s
Check	1m 24s
Check docs	57s
Clippy	1m 57s
Build	1m 54s
Test	2m 37s
Run Hermit for Rust (x86_64 + kvm)	5m 9s
Run (x86_64, rusty_demo, none, dev)	5m 45s
Run (x86_64, rusty_demo, none, release)	3m 16s
Run (x86_64, httpd, virtio-net-pci, dev)	3m 59s
Run (x86_64, httpd, virtio-net-pci, release)	4m 20s
Run (x86_64, httpd, rtl8139, dev)	4m 15s
Run (x86_64, httpd, rtl8139, release)	4m 14s
Run (x86_64, testudp, virtio-net-pci, dev)	2m 59s
Run (x86_64, testudp, virtio-net-pci, release)	4m 44s
Run (x86_64, testudp, rtl8139, dev)	3m 43s
Run (x86_64, testudp, rtl8139, release)	3m 49s
Run (x86_64, hello_world, none, dev)	2m 42s
Run (x86_64, hello_world, none, release)	4m 6s
Run (aarch64, rusty_demo, none, dev)	4m 4s
Run (aarch64, rusty_demo, none, release)	4m 6s
Run (aarch64, httpd, virtio-net-pci, dev)	3m 24s
Run (aarch64, httpd, virtio-net-pci, release)	4m 26s
Run (aarch64, testudp, virtio-net-pci, dev)	3m 51s
Run (aarch64, testudp, virtio-net-pci, release)	4m 28s
	1h 26m 30s

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