Versions

What CLI version are you using.
@microsoft/botframework-cli/4.11.0-dev.20200907.c063415
What Nodejs version are you using
win32-x64 node-v12.18.1
What command-line interpreters are you using
Powershell 6 (x64)
What OS are you using
Windows 10

Describe the bug

Give a clear and concise description of what the bug is.
Before each BF CLI command node tries to access registry.npmjs.org without being aware of proxy settings.
This retries for about a minute and then the command actually goes through in about 2-3 seconds.
We have a script that runs about 30-40 of these commands and it takes about 45 minutes to run it.
When a temporary exception is made for this address in our firewall the script takes about 3-4 minutes to run.

To Reproduce

Steps to reproduce the behavior:

1. Get behind a corporate proxy;
2. Get behind a corporate firewall;
3. Configure Node to use the proxy;
4. Set environment variables to use the proxy;
5. Run any of the following commands:

• bf luis:version:export
• bf luis:version:import
• bf luis:train:run
• bf luis:application:publish
• bf qnamaker:kb:export
• bf qnamaker:kb:replace
• bf luis:version:rename
• bf luis:convert
• bf luis:version:list

1. Wait for about a minute for the command to complete;
2. That was the bug.

Expected behavior

Give a clear and concise description of what you expected to happen.
Every request that the BF CLI (and its dependencies) makes respects proxy settings, whether environment or Node.

[bug]