Add more retries for failing integration tests (#615)

## What changes are proposed in this pull request?

As part of the automation of SDK updates, it is important that the tests
on the PR pass before it is merged. Due to some tests being flaky, the
integration tests often fail on the automated PRs leading to unmerged
orphaned PRs. This PR increases the number of retries for failing tests
to increase the reliability of the integration test suite.

## How is this tested?

N/A

NO_CHANGELOG=true

Author: Divyansh-db

NEXT_CHANGELOG.md

@@ -33,4 +33,4 @@
 * [Breaking] Remove `pgbouncerSettings` field for `com.databricks.sdk.service.postgres.ProjectDefaultEndpointSettings`.
 * Add `owner` field for `com.databricks.sdk.service.postgres.ProjectStatus`.
 * Add `validityCheckConfigurations` field for `com.databricks.sdk.service.qualitymonitorv2.QualityMonitor`.
-* Add `burstScalingEnabled` field for `com.databricks.sdk.service.serving.PtServedModel`.
+* Add `burstScalingEnabled` field for `com.databricks.sdk.service.serving.PtServedModel`.

pom.xml

@@ -129,7 +129,7 @@
           <excludes>
             <exclude>**/benchmark/**</exclude>
           </excludes>
-          <rerunFailingTestsCount>2</rerunFailingTestsCount>
+          <rerunFailingTestsCount>4</rerunFailingTestsCount>
         </configuration>
         <executions>
           <execution>