Jq not found after update

Created by: fdobrovolny

In the PR #424 a new package is installed jq (https://github.com/SovereignCloudStack/k8s-cluster-api-provider/blob/main/terraform/files/bin/bootstrap.sh#L24C29-L24C29). When having a machine created before this patch and then upgrading to the latest version this error arises when creating a cluster.

This, as part of #466 got merged into the maintained/v5.x. I just want to discuss whether we take the need for new software as a breaking change or not.

However, a few things should be addressed.

Adding the installation of jq into the upgrade script.
Documenting the need to install jq in docs or release notes for maintained/v5.x or consider removing the feature from the branch.

ubuntu@fd-mgmtcluster:~ [0]$ bin/create_cluster.sh testfd2
Switched to context "kind-kind".
> Cluster testfd2 does not exist. Creating a new cluster namespace...
namespace/testfd2 created
Context "kind-kind" modified.
> Namespace changed to testfd2
Adding docker.io/hosts.toml to the KubeadmControlPlane files
Adding docker.io/hosts.toml to the KubeadmConfigTemplate files
Switched to context "kind-kind".
> Cluster testfd2 does not exist, and new namespace creation is disabled.
#Created AppCred 11e495527840490da933ac524048b441
#Info: Changing OPENSTACK_CLOUD from testfd1 to fd-testfd2
Waiting for image ubuntu-capi-image-v1.25.11 to become active: d2619787-4d17-46d8-aa62-4f7c2969e47d active
Switched to context "kind-kind".
> Cluster testfd2 does not exist, and new namespace creation is disabled.
# show used variables for clustertemplate /home/ubuntu/testfd2/cluster-template.yaml
Adding server groups e246ed70-0fef-40f3-899d-8f1b00f2c339 and a785f99a-889a-4194-9b57-128bb82a76e6 to /home/ubuntu/testfd2/clusterctl.yaml
/home/ubuntu/bin/flavor_disk.sh: line 40: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 44: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 45: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 47: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 49: test: !=: unary operator expected
/home/ubuntu/bin/flavor_disk.sh: line 54: test: 0: unary operator expected
/home/ubuntu/bin/flavor_disk.sh: line 40: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 44: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 45: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 47: jq: command not found
/home/ubuntu/bin/flavor_disk.sh: line 49: test: !=: unary operator expected
/home/ubuntu/bin/flavor_disk.sh: line 54: test: 0: unary operator expected