partitionOwnershipExpirationInterval setting not applied

**Describe the bug**
We are using **spring-cloud-azure-starter-eventhubs** version 7.4.0. We have configured rebalancing and partition ownership expiration internal as per documentation:

```
spring:
cloud:
azure:
eventhubs:
processor:
load-balancing:
partition-ownership-expiration-interval: 30s
update-interval: 10s
```

We can clearly see in logs that load balancing is performed every 10s, as configured, but partition ownership is only re-assigned after the default 2 minutes. The configuration property is ignored.

**To Reproduce**
Create an eventhubs consumer with above configuration. It is sufficient to make it listen to a topic with only one partition configured. Then stop the pod/instance, at which point a new instance will automatically be started up. In the logs, it can be seen that the new instance performs load balancing every 10s, but only after 2 minutes it obtains ownership of the partition that was released by the earlier terminated listener.

**Expected behavior**
The new consumer should be granted ownership of the partition after 30s, as per configuration.

**Screenshots**
n/a

**Additional context**
n/a

**Can we contact you for additional details?**
Y

If yes, please send us your contact information to AzureSpringCloud-Talk@service.microsoft.com and include the issue number in the email title.

Start by tracing the Spring Cloud Azure Event Hubs processor configuration for partition-ownership-expiration-interval and its load-balancing setup. Reproduce with a single-partition topic, a 30-second expiration interval, and a terminated instance; done means the replacement consumer obtains ownership after about 30 seconds rather than the default two minutes.

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