Rust

Allow `self.alt` host for self-requests #7043

Job	Run time
Lint Rust	1m 34s
Build Spin static (aarch64, aarch64-unknown-linux-musl)	1m 33s
Build Spin static (amd64, x86_64-unknown-linux-musl)	1m 35s
Build Spin Ubuntu	1m 34s
Build Spin (windows-latest)	1m 18s
Review new dependencies for known vulnerabilities	4s
Build Spin (macos-13)	1m 35s
Run release build steps (ubuntu-20.04, amd64, --features openssl/vendored, target/release)	1m 35s
Test Spin (ubuntu-22.04-4core-spin)	1s
Build Spin (macos-14)	1m 37s
Run release build steps (ubuntu-20.04, aarch64, --features openssl/vendored --target aarch64-unkn...	1m 33s
Test Spin (macos-14)	1m 34s
Run release build steps (macos-13, amd64, target/release)	1m 34s
all-integration-tests	0s
Run release build steps (macos-14, aarch64, target/release)	1m 35s
Run release build steps (windows-latest, amd64, .exe, target/release)	1m 26s
	20m 8s

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