manifest: fix serialization of component dependency section #6676

Job	Run time
Lint Rust	6m 0s
Build Spin Ubuntu	22m 5s
Build Spin (windows-latest)	24m 16s
all-integration-tests	23m 30s
Build Spin static (aarch64, aarch64-unknown-linux-musl)	15m 39s
Build Spin static (amd64, x86_64-unknown-linux-musl)	14m 41s
Build Spin (macos-13)	15m 18s
Review new dependencies for known vulnerabilities	3s
Build Spin (macos-14)	9m 13s
Test Spin (ubuntu-22.04-4core-spin)	8m 17s
Test Spin (macos-14)	1s
Run release build steps (ubuntu-20.04, amd64, --features openssl/vendored, target/release)	14m 26s
Run release build steps (ubuntu-20.04, aarch64, --features openssl/vendored --target aarch64-unkn...	15m 41s
Run release build steps (macos-13, amd64, target/release)	21m 12s
Run release build steps (macos-14, aarch64, target/release)	11m 11s
Run release build steps (windows-latest, amd64, .exe, target/release)	27m 11s
	3h 48m 44s

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