chore: fix nightly node loading logic

[JamesHenry]

Our node 16 nightly was broken because it was only respecting the package.json, now it will respect the given node 16 value

[nx-cloud]

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✅ Successfully ran 2 targets

• nx run integration:integration --ci --maxWorkers=2 --testPathIgnorePatterns=lerna-import.spec.ts
• nx run-many -t test --parallel=3 --ci --maxWorkers=2 --testTimeout=45000 --testPathIgnorePatterns=create-symlink.spec.ts --testPathIgnorePatterns=get-two-factor-auth-required.spec.ts --testPathIgnorePatterns=version-lifecycle-scripts.spec.ts --testPathIgnorePatterns=version-allow-branch.spec.ts --testPathIgnorePatterns=version-message.spec.ts --tes...

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