The api:validate subcommand doesn't work from a bash script in an Azure DevOps pipeline

[edugarias]

• CLI version: 0.6.1
• OS: Linux (Ubuntu 20.04)
• Node.js version: 16.x
• SwaggerHub version if On-Premise: 1.29.1-89

Describe the bug you're encountering

When trying to validate an API from a bash task in an Azure DevOps deployment pipeline using the following command:
swaggerhub api:validate {SWAGGERHUB_ORGANIZATION}/{API_NAME}/{API_VERSION}

It fails with this output error:
Error: request to https://{SERVER}/v1/apis/{OWNER}/{API}/{VERSION}/validation failed, reason: Parse Error: Invalid header value char

Note: the above command fails even when a direct call to the validation operation from the same pipeline via curl using the same parameters works correctly.

To reproduce...

Steps to reproduce the behavior:

1. Given
   A deployment pipeline in Azure DevOps Services (Microsoft-hosted agent) using an Ubuntu virtual machine image
   An on-premise (reachable) instance of SwaggerHub that has API Standardization enabled
   An API specification to be validated
   A bash script to run the API validation command from the pipeline

2. Execute command 'swaggerhub api:validate {SWAGGERHUB_ORGANIZATION}/{API_NAME}/{API_VERSION}'

3. See error
   Error: request to https://SERVER/v1/apis/OWNER/API/VERSION/validation failed, reason: Parse Error: Invalid header value char

Expected behavior

The command should validate the API and print the relevant validation messages as output.