The verification logic of VersionValidator is out-of-date

[BethanyZhou]

Description

During the process of bumping version, the script will validate existing modules whether indeed need to updated.

Its current logic judges based on checking the required version url of module if exists.

For example, https://www.powershellgallery.com/packages/Az.Accounts/2.1.4 should not exist because the current Az.Accounts version is 2.1.2.

But seems PSGallery changes its behaviour, the url of required module will be redirected to the latest version url of module.

So the httpstatus will always be ok.

azure-powershell/tools/VersionController/Models/VersionValidator.cs

Lines 143 to 154 in c8b437e

	private bool DoesUrlExists(string url)
	{
	HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
	request.Method = WebRequestMethods.Http.Head;
	try
	{
	using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
	{
	if (response.StatusCode == HttpStatusCode.OK)
	{
	return true;
	}

Maybe we need update the verification logic or skip this step for efficiency.

Cost