krb5: new tag krb5-1.20-beta1

[Greg Hudson]

A new lightweight tag "krb5-1.20-beta1" has been created in the krb5
repository for the following commit:

commit d815ebd961a4fcf12172a69fe51ded74d62fe5f3
Author: Greg Hudson <ghudson at mit.edu>
Date:   Thu Mar 24 18:38:40 2022 -0400

    Update for krb5-1.20-beta1