The Cour de Justice de la République is a special French court established to try cases of ministerial misconduct. Its remit only extends to government ministers concerning offences committed in the exercise of their functions. From Wikipedia
The non-lieu request by Prosecutor General Rémy Heitz reduces the likelihood of a trial for Édouard Philippe, Agnès Buzyn, and Olivier Véran, pending a final decision by the CJR's instruction commission.