images: Update fedora-26 image
images: Update fedora-26 image

Closes #7440

garrett/cockpit,petervo/cockpit,SotolitoLabs/cockpit,larsu/cockpit,michalskrivanek/cockpit,cockpituous/cockpit,andreasn/cockpit,moraleslazaro/cockpit,Scribery/cockpit,SotolitoLabs/cockpit,larskarlitski/cockpit,harishanand95/cockpit,mvollmer/cockpit,mvollmer/cockpit,petervo/cockpit,mvollmer/cockpit,stefwalter/cockpit,Scribery/cockpit,deryni/cockpit,andreasn/cockpit,harishanand95/cockpit,michalskrivanek/cockpit,deryni/cockpit,garrett/cockpit,Scribery/cockpit,mareklibra/cockpit,deryni/cockpit,deryni/cockpit,SotolitoLabs/cockpit,petervo/cockpit,larsu/cockpit,cockpit-project/cockpit,deryni/cockpit,larsu/cockpit,larsu/cockpit,mareklibra/cockpit,mareklibra/cockpit,harishanand95/cockpit,mareklibra/cockpit,cockpit-project/cockpit,martinpitt/cockpit,stefwalter/cockpit,cockpit-project/cockpit,mareklibra/cockpit,cockpituous/cockpit,larskarlitski/cockpit,andreasn/cockpit,cockpit-project/cockpit,Scribery/cockpit,mareklibra/cockpit,cockpituous/cockpit,cockpit-project/cockpit,mareklibra/cockpit,michalskrivanek/cockpit,Scribery/cockpit,cockpituous/cockpit,harishanand95/cockpit,andreasn/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,michalskrivanek/cockpit,moraleslazaro/cockpit,michalskrivanek/cockpit,moraleslazaro/cockpit,harishanand95/cockpit,moraleslazaro/cockpit,larskarlitski/cockpit,harishanand95/cockpit,andreasn/cockpit,andreasn/cockpit,SotolitoLabs/cockpit,garrett/cockpit,martinpitt/cockpit,larsu/cockpit,garrett/cockpit,stefwalter/cockpit,stefwalter/cockpit,deryni/cockpit,harishanand95/cockpit,michalskrivanek/cockpit,martinpitt/cockpit,mvollmer/cockpit,stefwalter/cockpit,petervo/cockpit,andreasn/cockpit,martinpitt/cockpit,larskarlitski/cockpit,cockpituous/cockpit,larskarlitski/cockpit,larskarlitski/cockpit,Scribery/cockpit,stefwalter/cockpit,larskarlitski/cockpit,cockpituous/cockpit,petervo/cockpit,moraleslazaro/cockpit,petervo/cockpit,deryni/cockpit,martinpitt/cockpit,SotolitoLabs/cockpit,Scribery/cockpit,garrett/cockpit,michalskrivanek/cockpit,SotolitoLabs/cockpit,moraleslazaro/cockpit,stefwalter/cockpit,petervo/cockpit,SotolitoLabs/cockpit,larsu/cockpit