chore(repo): use node 18 for GH Actions

[Coly010]

Use Node 18 in GH Actions for the nx-labs repo.

This helps prepare the repo for Remix v2

[nx-cloud[bot]]

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CI is running/has finished running commands for commit ec3e2fdff8023b122c1162951bc94b8ecbf1f18e. As they complete they will appear below. Click to see the status, the terminal output, and the build insights.

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⌛ The following targets are in progress

• nx affected --target=e2e --parallel --max-parallel=1 --exclude=nx-ignore-e2e,gatsby-e2e
• nx affected --target=test --parallel --max-parallel=2
• nx affected --target=build --parallel --max-parallel=3
• nx affected --target=lint --parallel --max-parallel=3

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