A 26-Week Randomized, Open-label, Active Controlled, Parallel-group, Study Assessing the Efficacy and Safety of the Insulin Glargine/Lixisenatide Fixed Ratio Combination in Adults With Type 2 Diabetes Inadequately Controlled on GLP-1 Receptor Agonist and Metformin (Alone or With Pioglitazone and/or SGLT2 Inhibitors), Followed by a Fixed Ratio Combination Single-arm 26-Week Extension Period