feat: add otelcol's liveness and readiness probes configuration

[pmalek-sumo]

This also changes the default settings to the following:

livenessProbe:
  periodSeconds: 10
  timeoutSeconds: 3
  failureThreshold: 3
readinessProbe:
  periodSeconds: 10
  timeoutSeconds: 3
  failureThreshold: 3

---

Default until now for otc:

livenessProbe:
  failureThreshold: 3
  httpGet:
    path: /
    port: 13133
    scheme: HTTP
  periodSeconds: 10
  successThreshold: 1
  timeoutSeconds: 1

For comparison fluentd probes are set like so:

livenessProbe:
  failureThreshold: 3
  httpGet:
    path: /fluentd.pod.healthcheck?json=%7B%22log%22%3A+%22health+check%22%7D
    port: 9880
    scheme: HTTP
  initialDelaySeconds: 300
  periodSeconds: 30
  successThreshold: 1
  timeoutSeconds: 3

[swiatekm]

timeoutSeconds: 1

In your changes, I see this set to 3. Which is the correct value?

Have you tested how this behaves under load?

[pmalek-sumo]

timeoutSeconds: 1

In your changes, I see this set to 3. Which is the correct value?

Have you tested how this behaves under load?

@swiatekm-sumo please check again. Wrong wording in the description :)