[CPDEV-98973] Scale Typha replicas to 1 in All-in-One

[ilia1243]

Description

• If Calico Typha is enabled in All-in-One, installation fails.
• This is caused by #618 after which we started to expect Typha deployment.

Solution

• Scale Typha replicas to 1 if it is enabled in schemes with 1 Kubernetes node.
• If 2nd Kubernetes node is added, scale replicas to 2 and redeploy calico plugin.

Test Cases

TestCase 1

Enable Calico Typha in All-in-One.

Steps:

1. Set plugins.calico.typha.enabled to True in All-in-One and install the cluster.

Results:

Before	After
Installation fails	Installation succeeds with 1 deployed Typha replica

TestCase 2

Add 2nd Kubernetes node to All-in-One with Calico Typha enabled.

Steps:

1. Set plugins.calico.typha.enabled to True in All-in-One and install the cluster.
2. Add 2nd Kubernetes node.

ER: calico plugin is redeployed and Calico Typha is scaled to 2 replicas.

Checklist

• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] Integration CI passed
• [x] Unit tests. If Yes list of new/changed tests with brief description
• [x] There is no merge conflicts

Unit tests

test_calico.py - cover new enrichment, and redeploy cases.