Add support for disabling in-cluster endpoint connection pooling

[isala404]

Purpose

The use of connection pooling for intra-cluster communications has led to a few conflicts with Cilium Envoy, resulting in intermittent 503 errors. The goal of this PR is to disable connection pooling within the cluster to mitigate the issue described in cilium/cilium#33880.

Issues

Fixes #

Automation tests

• Unit tests added: Yes/No
• Integration tests added: Yes/No

Tested environments

Not Tested

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Maintainers: Check before merge

• Assigned 'Type' label
• Assigned the project
• Validated respective github issues
• Assigned milestone to the github issue(s)

[choreo-cicd]

[failed] Dataplane(NorthEU) cluster : dev-deployment-v2 : 20241030.8

[choreo-cicd]

[succeeded] : dev-deployment-v2 : 20241030.8

[choreo-cicd]

[failed] Dataplane(EastUS) cluster : dev-deployment-v2 : 20241030.8

[choreo-cicd]

[] Dataplane(NorthEU) cluster : dev-deployment-v2 : 20241030.32

[choreo-cicd]

[] : dev-deployment-v2 : 20241030.32

[choreo-cicd]

[] Dataplane(EastUS) cluster : dev-deployment-v2 : 20241030.32

[choreo-cicd]

[] Dataplane(NorthEU) cluster : stage-deployment-v2 : 20241031.3

[choreo-cicd]

[] Dataplane(EastUS) cluster : stage-deployment-v2 : 20241031.3

[choreo-cicd]

[] Controlplane cluster : stage-deployment-v2 : 20241031.3

[choreo-cicd]

[succeeded] Controlplane cluster : prod-deployment-v2 : 20241101.3

[choreo-cicd]

[succeeded] Dataplane(NorthEU) cluster : prod-deployment-v2 : 20241101.3

[choreo-cicd]

[failed] Dataplane(CDP2-WU2) cluster : prod-deployment-v2 : 20241101.3

[choreo-cicd]

[succeeded] Dataplane(EastUS) cluster : prod-deployment-v2 : 20241101.3

[choreo-cicd]

[] Dataplane(CDP2-WU2) cluster : prod-deployment-v2 : 20241101.4

[choreo-cicd]

[] Dataplane(EastUS) cluster : prod-deployment-v2 : 20241101.4

[choreo-cicd]

[] Controlplane cluster : prod-deployment-v2 : 20241101.4

[choreo-cicd]

[] Dataplane(NorthEU) cluster : prod-deployment-v2 : 20241101.4