[BUG] Azure.Security.KeyVault.Secrets preview2 uses 1970 to populate the Created and Updated properties

[KSchlobohm]

Describe the bug
When creating a new Secret the new value is stored as 1/19/1970 rather than current DateTime and the properties for Created and Updated on the Secret object are read-only.

Exception or Stack Trace
N\A

To Reproduce

1. Create a Secret

Code Snippet

            SecretClient client = new SecretClient(
                vaultUri: new Uri("https://ux-bash-keyvault.vault.azure.net/"),
                credential: new DefaultAzureCredential());

            Secret newSecret = new Secret("newSecret", "createdToday");
            Secret newSecretResponse = client.Set(newSecret);
            Console.WriteLine("newSecret Created: " + newSecretResponse.Created);
            Console.WriteLine("newSecret Updated: " + newSecretResponse.Updated);

Expected behavior

• Expected to be able to set these values or have the values set during the life-cycle of saving the data when they're set to read-only.

Screenshots

Setup (please complete the following information):

• OS: [Windows 10]
• IDE : [Visual Studio 2019]
• Version of the Library used - Azure.Security.KeyVault.Secrets -Version 4.0.0-preview.2

Information Checklist
Kindly make sure that you have added all the following information above and checkoff the required fields otherwise we will treat the issuer as an incomplete report

• Bug Description Added
• Repro Steps Added
• Setup information Added

[KSchlobohm]

Looks like the link to the KeyVault Readme is changing with regard to the link for Steps to Reproduce.

[AlexGhiondea]

@KSchlobohm thanks for pointing this out! We'll take a look at this!