EADDRINUSE for test-port=0 suggests test-port not always respected (7357 still attempted to be used)

[runspired]

I've been noticing this on most test-runs for EmberData recently.

tests/main test:try-one: ERROR Summary:
tests/main test:try-one:   - broccoliBuilderErrorStack: [undefined]
tests/main test:try-one:   - code: EADDRINUSE
tests/main test:try-one:   - codeFrame: [undefined]
tests/main test:try-one:   - errorMessage: listen EADDRINUSE: address already in use :::7357
tests/main test:try-one:   - errorType: [undefined]
tests/main test:try-one:   - location:
tests/main test:try-one:     - column: [undefined]
tests/main test:try-one:     - file: [undefined]
tests/main test:try-one:     - line: [undefined]
tests/main test:try-one:   - message: listen EADDRINUSE: address already in use :::7357
tests/main test:try-one:   - name: Error
tests/main test:try-one:   - nodeAnnotation: [undefined]
tests/main test:try-one:   - nodeName: [undefined]
tests/main test:try-one:   - originalErrorMessage: [undefined]
tests/main test:try-one:   - stack: Error: listen EADDRINUSE: address already in use :::7357
tests/main test:try-one:     at Server.setupListenHandle [as _listen2] (node:net:1485:16)
tests/main test:try-one:     at listenInCluster (node:net:1533:12)
tests/main test:try-one:     at Server.listen (node:net:1621:7)
tests/main test:try-one:     at /home/runner/work/data/data/node_modules/.pnpm/testem@3.9.0/node_modules/testem/lib/server/index.js:65:19
tests/main test:try-one:     at Promise._execute