Fails on Windows (only) with ESMOKER_PACK "PackError: Package manager "npm" failed to pack"

[DavidAnson]

For example: https://github.com/DavidAnson/markdownlint-cli2/actions/runs/6033354568

The same configuration passes on macOS and Ubuntu. See also #338.

Run npm exec --yes -- midnight-smoker --verbose test-invoke-as-cli
  npm exec --yes -- midnight-smoker --verbose test-invoke-as-cli
  shell: C:\Program Files\PowerShell\7\pwsh.EXE -command ". '{0}'"
  
💨 midnight-smoker v7.0.1
- Packing current project…
✖ Failed while packing!

PackError: Package manager "npm" failed to pack
    at Npm7.pack (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\pm\npm7.ts:180:13)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at Smoker.pack (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\smoker.ts:296:20)
    at Smoker.smoke (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\smoker.ts:636:34)
    at Object.handler (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\cli.ts:424:15) {
  code: 'ESMOKER_PACK',
  [cause]: {
    pm: 'npm',
    error: Error: Command failed with exit code 1: C:\hostedtoolcache\windows\node\20.5.1\x64\node.exe C:\npm\cache\_npx\b66bfc48521ee935\node_modules\.bin\corepack npm@9.8.1 pack --json --pack-destination=C:\Users\RUNNER~1\AppData\Local\Temp\midnight-smoker-W4Q28f --foreground-scripts=false
    C:\npm\cache\_npx\b66bfc48521ee935\node_modules\.bin\corepack:2
    basedir=$(dirname "$(echo "$0" | sed -e 's,\\,/,g')")
              ^^^^^^^
    
    SyntaxError: missing ) after argument list
        at internalCompileFunction (node:internal/vm:73:18)
        at wrapSafe (node:internal/modules/cjs/loader:1153:20)
        at Module._compile (node:internal/modules/cjs/loader:1197:27)
        at Module._extensions..js (node:internal/modules/cjs/loader:1287:10)
        at Module.load (node:internal/modules/cjs/loader:1091:32)
        at Module._load (node:internal/modules/cjs/loader:938:12)
        at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:83:12)
        at node:internal/main/run_main_module:23:47
    
    Node.js v20.5.1
        at makeError (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\execa\lib\error.js:60:11)
        at handlePromise (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\execa\index.js:118:26)
        at processTicksAndRejections (node:internal/process/task_queues:95:5)
        at CorepackExecutor.exec (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\pm\corepack.ts:50:12)
        at Npm7.pack (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\pm\npm7.ts:156:20)
        at Smoker.pack (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\smoker.ts:296:20)
        at Smoker.smoke (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\smoker.ts:636:34)
        at Object.handler (C:\npm\cache\_npx\b66bfc48521ee935\node_modules\midnight-smoker\src\cli.ts:424:15) {
      shortMessage: 'Command failed with exit code 1: C:\\hostedtoolcache\\windows\\node\\20.5.1\\x64\\node.exe C:\\npm\\cache\\_npx\\b66bfc48521ee935\\node_modules\\.bin\\corepack npm@9.8.1 pack --json --pack-destination=C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\midnight-smoker-W4Q28f --foreground-scripts=false',
      command: 'C:\\hostedtoolcache\\windows\\node\\20.5.1\\x64\\node.exe C:\\npm\\cache\\_npx\\b66bfc48521ee935\\node_modules\\.bin\\corepack npm@9.8.1 pack --json --pack-destination=C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\midnight-smoker-W4Q28f --foreground-scripts=false',
      escapedCommand: '"C:\\hostedtoolcache\\windows\\node\\20.5.1\\x64\\node.exe" "C:\\npm\\cache\\_npx\\b66bfc48521ee935\\node_modules\\.bin\\corepack" "npm@9.8.1" pack --json "--pack-destination=C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\midnight-smoker-W4Q28f" "--foreground-scripts=false"',
      exitCode: 1,
      signal: undefined,
      signalDescription: undefined,
      stdout: '',
      stderr: 'C:\\npm\\cache\\_npx\\b66bfc48521ee935\\node_modules\\.bin\\corepack:2\r\n' +
        `basedir=$(dirname "$(echo "$0" | sed -e 's,\\\\,/,g')")\r\n` +
        '          ^^^^^^^\r\n' +
        '\r\n' +
        'SyntaxError: missing ) after argument list\r\n' +
        '    at internalCompileFunction (node:internal/vm:73:18)\r\n' +
        '    at wrapSafe (node:internal/modules/cjs/loader:1153:20)\r\n' +
        '    at Module._compile (node:internal/modules/cjs/loader:1197:27)\r\n' +
        '    at Module._extensions..js (node:internal/modules/cjs/loader:1287:10)\r\n' +
        '    at Module.load (node:internal/modules/cjs/loader:1091:32)\r\n' +
        '    at Module._load (node:internal/modules/cjs/loader:938:12)\r\n' +
        '    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:83:12)\r\n' +
        '    at node:internal/main/run_main_module:23:47\r\n' +
        '\r\n' +
        'Node.js v20.5.1',
      failed: true,
      timedOut: false,
      isCanceled: false,
      killed: false
    }
  }
}
Error: Process completed with exit code 1.