Fix AzureBlobContainerRetriesTests flaky tests (#15184)

Author: reta

plugins/repository-azure/src/test/java/org/opensearch/repositories/azure/AzureBlobContainerRetriesTests.java

@@ -157,7 +157,7 @@ private BlobContainer createBlobContainer(final int maxRetries) {
             + "/";
         clientSettings.put(ENDPOINT_SUFFIX_SETTING.getConcreteSettingForNamespace(clientName).getKey(), endpoint);
         clientSettings.put(MAX_RETRIES_SETTING.getConcreteSettingForNamespace(clientName).getKey(), maxRetries);
-        clientSettings.put(TIMEOUT_SETTING.getConcreteSettingForNamespace(clientName).getKey(), TimeValue.timeValueMillis(2000));
+        clientSettings.put(TIMEOUT_SETTING.getConcreteSettingForNamespace(clientName).getKey(), TimeValue.timeValueMillis(5000));
 
         final MockSecureSettings secureSettings = new MockSecureSettings();
         secureSettings.setString(ACCOUNT_SETTING.getConcreteSettingForNamespace(clientName).getKey(), "account");