Local file path is flagged as URL on Windows

[OlivierBrabanders]

Summary

If I set the config variable customOrgMetadataTemplates to a hard-coded directory on Windows and try to create a Trigger/Apex class/... I am shown the following message: Only HTTPS protocol is supported for custom templates. Got "c:"

Steps To Reproduce:

1. Download the repo locally in an SFDX project
2. Open a terminal in the SFDX project
3. Set customOrgMetadataTemplates to a Windows path i.e. sfdx config:set customOrgMetadataTemplates=C:\Users\OlivierBrabanders\Documents\Projects\SFDX\templates
4. Execute any SFDX command for file creation with any name i.e. Apex trigger, name it "Test"

Expected result

I expect a file Test.trigger-meta.xml to be created.

Actual result

An error message is shown: Only HTTPS protocol is supported for custom templates. Got "c:"

Additional information

VS Code Version:
1.61.0

SFDX CLI Version:
sfdx-cli/7.122.1 win32-x64 node-v14.18.0

OS and version:

• OS Name Microsoft Windows 10 Enterprise 2016 LTSB
• Version 10.0.14393 Build 14393