Glob patterns not fully supported

[trevor-scheer]

See build: https://ci.codesandbox.io/status/apollographql/apollo-server/pr/5999/builds/206909

We have a pretty large list of packages, and only one that needs to be excluded (it's private / unpublished). I tried to use the glob pattern packages/!(apollo-server-integration-testsuite) to ignore it, but it interprets the string literally and results in the error:
Error: Can't find package.json at /tmp/16f8ef8e/packages/!(apollo-server-integration-testsuite)/package.json

The docs/example does say globs are supported:

// Globs are supported.
"packages": ["packages/react", "packages/react-dom"],