Implement wasi-keyvalue #6787

Job	Run time
all-integration-tests	15m 15s
Build Spin Ubuntu	16m 9s
Build Spin static (aarch64, aarch64-unknown-linux-musl)	15m 56s
Build Spin (windows-latest)	15m 52s
Build Spin static (amd64, x86_64-unknown-linux-musl)	15m 23s
Review new dependencies for known vulnerabilities	5s
Build Spin (macos-13)	10m 19s
Build Spin (macos-14)	22s
Run release build steps (ubuntu-20.04, amd64, --features openssl/vendored, target/release)	14m 57s
Lint Rust	5m 46s
Run release build steps (ubuntu-20.04, aarch64, --features openssl/vendored --target aarch64-unkn...	16m 6s
Test Spin (ubuntu-22.04-4core-spin)	14m 20s
Run release build steps (macos-13, amd64, target/release)	1s
Test Spin (macos-14)	1s
Run release build steps (macos-14, aarch64, target/release)	1s
Run release build steps (windows-latest, amd64, .exe, target/release)	16m 0s
	2h 36m 33s

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