PACKET_API_TOKEN is not base64 encoded

[gianarb]

When doing clusterctl init with packet provider the PACKET_API_TOKEN env var is required because the manager uses it to interact with PacketAPI.

We create the secret but its content is not base64 encoded, so it means that when kubernetes tries to attach it as env var in the pod it can't decode it

[gianarb]

DigitalOcean requires a BASE64 environment variable:

https://github.com/kubernetes-sigs/cluster-api-provider-digitalocean/blob/master/config/manager/credentials.yaml#L8

i am gonna do the same