By Elizabeth Pineau and Michel Rose PARIS (Reuters) – French President Emmanuel Macron named 34-year-old Education Minister Gabriel Attal as his new prime minister on Tuesday, seeking to breathe new life into his second mandate ahead of European parliament elections. Attal becomes the youngest and first openly gay prime minister in French history. His nomination will not necessarily lead to any major political shift, but signals a desire by Macron to move beyond last year’s unpopular pension and immigration reforms and improve his centrist party’s chances in the June EU ballot. “Dear @GabrielA…