scripts/release.sh: fix command (#79)

Author: daviddrysdale

scripts/release.sh

@@ -6,5 +6,5 @@ CRATE_DIRS=(proto tink prf mac aead daead streaming signature integration/awskms
 
 # Release crates in dependency order. Assumes `cargo login` has been done.
 for dir in "${CRATE_DIRS[@]}"; do
-    cargo release --manifest-path "$dir/Cargo.toml"
+    cargo publish --manifest-path "$dir/Cargo.toml"
 done