[BUG] version command fails in 2.4.3

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🐛 Bug Report:

Describe the bug

version returns an error

Steps to Reproduce

Steps to reproduce the behavior:

1. npm install -g @openapitools/openapi-generator-cli@2.4.3
2. npx @openapitools/openapi-generator-cli version

Expected behavior

Download 5.2.1 ...
Downloaded 5.2.1
Did set selected version to 5.2.1
5.2.1

Actual behavior

Unexpected token '?'

Operation System (please complete the following information):

• OSX 11.6
• Ubuntu 18.04

Package System (please complete the following information):

• npm 6.14.6

Additional context

Rolling back to 2.4.2 fixes the problem