docs: Update the MicroK8s page to reflect 4.4 changes

[caroldelwing]

Describe the Change

This PR updates the MicroK8s pack custom content page to reflect 4.4 changes.

Changed Pages

💻 MicroK8s

Jira Tickets

🎫 PCP-2787 🎫 PCP-2882 🎫 PCP-2886

Backports

Can this PR be backported?

• [ ] Yes. Remember to add the relevant backport labels to your PR.
• [x] No. _Please leave a short comment below about why this PR cannot be backported._This is a 4.4 PR.

[vault-token-factory-spectrocloud[bot]]

Images automagically compressed by Calibre's image-actions ✨

Compression reduced images by 82.3%, saving 462.84 KB.

Filename	Before	After	Improvement	Visual comparison
static/assets/docs/images/integrations_microk8s_cluster-profile-view.webp	562.68 KB	99.84 KB	-82.3%	View diff

695 images did not require optimisation.

[vault-token-factory-spectrocloud[bot]]

Images automagically compressed by Calibre's image-actions ✨

Compression reduced images by 1.2%, saving 1.19 KB.

Filename	Before	After	Improvement	Visual comparison
static/assets/docs/images/integrations_microk8s_cluster-profile-view.webp	99.84 KB	98.65 KB	-1.2%	View diff

695 images did not require optimisation.

[cloudmaniac]

@caroldelwing I was just told that MicroK8s only supports single node control plane, and multi-node control plane provisioning is failing (because of an upstream issue that will be fixed later). Could you please add a warning in the doc page reflecting that? Thx

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