feat(wasi-observe): WASI Observe factor implementation #6734

Job	Run time
Build Spin Ubuntu	21m 29s
Build Spin (windows-latest)	47m 28s
Build Spin static (aarch64, aarch64-unknown-linux-musl)	15m 33s
all-integration-tests	23m 47s
Build Spin (macos-13)	32m 34s
Build Spin static (amd64, x86_64-unknown-linux-musl)	6m 47s
Review new dependencies for known vulnerabilities	14s
Build Spin (macos-14)	19m 16s
Lint Rust	8m 56s
Run release build steps (ubuntu-20.04, amd64, --features openssl/vendored, target/release)	15m 25s
Test Spin (ubuntu-22.04-4core-spin)	8m 56s
Run release build steps (ubuntu-20.04, aarch64, --features openssl/vendored --target aarch64-unkn...	16m 8s
Test Spin (macos-14)	28m 14s
Run release build steps (macos-13, amd64, target/release)	18m 27s
Run release build steps (macos-14, aarch64, target/release)	11m 50s
Run release build steps (windows-latest, amd64, .exe, target/release)	26m 52s
	5h 1m 56s

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