By Foo Yun Chee BRUSSELS (Reuters) – Microsoft faces a new antitrust complaint over its cloud computing practices as trade group CISPE, whose members include Amazon, took its grievance to European Union antitrust regulators on Wednesday. CISPE has alleged that Microsoft’s new contractual terms imposed on Oct. 1 together with other practices are irreparably damaging the European cloud computing ecosystem. Amazon is the market leader in the cloud computing sector, followed by Microsoft and Alphabet unit Google. “Leveraging its dominance in productivity software, Microsoft restricts choice and in…