fix(node): E2E test port conflicts

[ndcunningham]

Fixes this issue: https://staging.nx.app/runs/7BPr6czXMd/task/e2e-node%3Ae2e

Since the e2e tests are usually async there is a possibility that two tests using the same environment variable (in this case port) can conflict while running.

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1 Ignored Deployment

Name	Status	Preview	Updated (UTC)
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⌛ The following target is in progress

• nx affected --targets=lint,test,build --base=626605ef9741180c1bd75986eedcdf1c91e7fed3 --head=87726df1e25a063904bfce34e94f5e5beb3d1e8e --parallel=3

✅ Successfully ran 5 targets

• nx affected --target=e2e --base=626605ef9741180c1bd75986eedcdf1c91e7fed3 --head=87726df1e25a063904bfce34e94f5e5beb3d1e8e --parallel=1
• nx run-many -t check-imports check-commit check-lock-files check-codeowners documentation --parallel=1 --no-dte
• nx-cloud record -- nx format:check --base=626605ef9741180c1bd75986eedcdf1c91e7fed3 --head=87726df1e25a063904bfce34e94f5e5beb3d1e8e
• nx documentation --no-dte
• nx affected -t e2e-macos --parallel=1 --base=626605ef9741180c1bd75986eedcdf1c91e7fed3 --head=87726df1e25a063904bfce34e94f5e5beb3d1e8e

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