Build script fails when you have private PSRepositories

[thomasrayner]

This issue occurs while building PSScriptAnalyzer when you have a private gallery added to your PSRepository list. There are several instances in the build scripts which install dependencies, presumably from the PowerShell Gallery, but don't specifically target that specific repository. Because of how Install-Module works, these private galleries are erroneously searched instead of retrieving the module from the PS Gallery.

Steps to reproduce

# Before continuing, add a private nuget feed to your PS Repositories using the Register-PSRepository command
.\build.ps1 -Clobber

Expected behavior

Build completes successfully.

Actual behavior

An error is presented if you are missing a necessary module.

VERBOSE: platyPS module not found or below required version of 0.12, installing the latest version.
[Warning] [CredentialProvider]Exception when fetching the authorization endpoint: The given header was not found.
[Warning] [CredentialProvider]   at System.Net.Http.Headers.HttpHeaders.GetValues(String name)
   at NuGetCredentialProvider.CredentialProviders.Vsts.AuthUtil.<GetAuthorizationEndpoint>d__6.MoveNext() in E:\A\_work\467\s\CredentialProvider.Microsoft\CredentialProviders\Vsts\IAuthUtil.cs:line 91
[Warning] [CredentialProvider]Could not find SPS authorization endpoint for https://redacted.pkgs.visualstudio.com/_packaging/redacted/nuget/v3
[Minimal] [CredentialProvider]DeviceFlow: https://redacted.pkgs.visualstudio.com/_packaging/redacted/nuget/v3
[Minimal] [CredentialProvider]ATTENTION: User interaction required.

    **********************************************************************

    To sign in, use a web browser to open the page https://microsoft.com/devicelogin and enter the code redacted to authenticate.

    **********************************************************************

[Warning] [CredentialProvider]Exception when fetching the authorization endpoint: The given header was not found.
[Warning] [CredentialProvider]   at System.Net.Http.Headers.HttpHeaders.GetValues(String name)
   at NuGetCredentialProvider.CredentialProviders.Vsts.AuthUtil.<GetAuthorizationEndpoint>d__6.MoveNext() in E:\A\_work\467\s\CredentialProvider.Microsoft\CredentialProviders\Vsts\IAuthUtil.cs:line 91
[Warning] [CredentialProvider]Could not find SPS authorization endpoint for https://redacted.pkgs.visualstudio.com/_packaging/redacted/nuget/v3

Environment data

This occurs while building PSScriptAnalyzer while you have private galleries added.