code: public ArrayList<OvhTask> serviceName_backupRepository_inventoryName_upgradeQuota_POST(String serviceName, String inventoryName, Long newQuota) throws IOException {
  		String qPath = "/veeamCloudConnect/{serviceName}/backupRepository/{inventoryName}/upgradeQuota";
  		StringBuilder sb = path(qPath, serviceName, inventoryName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "newQuota", newQuota);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, t2);
  	}
docs: Change your quota
  
  REST: POST /veeamCloudConnect/{serviceName}/backupRepository/{inventoryName}/upgradeQuota
  @param newQuota [required] my new quota in GB
  @param serviceName [required] Domain of the service
  @param inventoryName [required] The inventory name of your backup repository