Due to NuGet.org had TLS 1.0 and 1.1 disabled, updating the powershell script to use TLS 1.2 instead
Due to NuGet.org had TLS 1.0 and 1.1 disabled, updating the powershell script to use TLS 1.2 instead

couchbase/couchbase-lite-net,couchbase/couchbase-lite-net,couchbase/couchbase-lite-net