test/extended/prometheus/OWNERS: refresh members
test/extended/prometheus/OWNERS: refresh members

This change updates the list of reviewers and approvers to be consistent
with the current team structure.

Signed-off-by: Simon Pasquier <38e2d22e48be18381a59028f88390cad04670376@redhat.com>

gabemontero/origin,coreydaley/origin,gabemontero/origin,deads2k/origin,mahak/origin,mfojtik/origin,xiuwang/origin,coreydaley/origin,openshift/origin,soltysh/origin,sallyom/origin,gabemontero/origin,JacobTanenbaum/origin,openshift/origin,csrwng/origin,akram/origin,mahak/origin,deads2k/origin,hroyrh/origin,jsafrane/origin,mfojtik/origin,akram/origin,bparees/origin,mahak/origin,bparees/origin,hroyrh/origin,akram/origin,xiuwang/origin,coreydaley/origin,deads2k/origin,sallyom/origin,bparees/origin,csrwng/origin,soltysh/origin,JacobTanenbaum/origin,JacobTanenbaum/origin,csrwng/origin,xiuwang/origin,hroyrh/origin,mfojtik/origin,openshift/origin,soltysh/origin,jsafrane/origin,jsafrane/origin,sallyom/origin