[3] Upgrade exoscale terraform provider

[Xartos]

Currently the terraform script is based on the version 0.21 and hasn't really been touched since then.
The latest version as of writing is 0.46. They have for example removed the exoscale_compute resource that we are using in favor of exoscale_compute_instance to support their new flavors and some changes like that.

We should probably try to fix this to not lag behind to much and stuff starts to break.

Definition of Done

• The exoscale provider in the kubespray terraform scripts for exoscale is updated.

[OlleLarsson]

0.47 released.

[crssnd]

also try to fix this issue at the same time

[OlleLarsson]

Move back to prio board?

[crssnd]

no update from the upstream so we'll move it to the backlog