Fix soundness error

Author: award999

docker/sandbox.sb

@@ -58,6 +58,7 @@
     (subpath "/bin")
     (subpath "/usr/bin")
     (subpath "/usr/local/bin")
+    (subpath "/usr/lib/swift")
     (subpath "/usr/libexec/path_helper")
     (subpath "/usr/local/share/git-core")
     (subpath "/usr/local/share/hwtrace")

docker/test-macos.sh

@@ -15,7 +15,7 @@
 
 set -e
 
-platform=$([ $(arch) == "arm64" ] && echo "arm64" || echo "x64")
+platform=$([ "$(arch)" == "arm64" ] && echo "arm64" || echo "x64")
 
 NODE_VERSION="$(cat .nvmrc)"
 NODE_NAME="node-v$NODE_VERSION-darwin-$platform"