chore(caddy): bump github.com/caddyserver/caddy/v2 from 2.8.4 to 2.9.0 in /caddy #1915

Job	Run time
prepare	7s
Build macOS arm64 binaries	18m 5s
Build linux/amd64 static binary	25m 14s
Build macOS x86_64 binaries	34m 41s
Build linux/arm64 static binary	4h 28m 7s
Build linux/amd64 static binary (debug)	23m 22s
Build linux/amd64 static binary (mimalloc)	19m 45s
push	0s
	6h 29m 21s

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