Fix `@` in URL path confusing the parser #6861

Job	Run time
Lint Rust	6m 6s
Build Spin Ubuntu	21m 5s
Build Spin (windows-latest)	32m 5s
all-integration-tests	23m 12s
Build Spin static (aarch64, aarch64-unknown-linux-musl)	15m 54s
Build Spin (macos-13)	23m 49s
Review new dependencies for known vulnerabilities	6s
Build Spin static (amd64, x86_64-unknown-linux-musl)	14m 58s
Build Spin (macos-14)	8m 28s
Run release build steps (ubuntu-20.04, amd64, --features openssl/vendored, target/release)	14m 55s
Test Spin (ubuntu-22.04-4core-spin)	8m 33s
Run release build steps (ubuntu-20.04, aarch64, --features openssl/vendored --target aarch64-unkn...	16m 47s
Test Spin (macos-14)	24m 38s
Run release build steps (macos-13, amd64, target/release)	29m 45s
Run release build steps (macos-14, aarch64, target/release)	12m 30s
Run release build steps (windows-latest, amd64, .exe, target/release)	26m 24s
	4h 39m 15s

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