Adding affinity parameter in deployments

[aldato]

Summary

This PR adds the capability of managing the affinity of the different component deployments being used by EDA.

Changes

• Added the necessary changes in the EDA CDR
• Added the defaults for affinity
• Added the required conditionals in the Jinja2 templates

Tests

I tested it using simple podAntiAffinity rules within the EDA CR under spec.event_stream with the following and it worked just fine (against the task pod of controller):

    task_affinity:
      podAntiAffinity:
        requiredDuringSchedulingIgnoredDuringExecution:
        - labelSelector:
            matchExpressions:
            - key: app.kubernetes.io/name
              operator: In
              values:
              - automation-controller-task
          topologyKey: kubernetes.io/hostname

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud