test: Disable coredumps for test browser
test: Disable coredumps for test browser

Chromium-browser often exits with SIGTRAP, leaving behind a coredump
which results in make distcheck failing.

Closes #11455

deryni/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,garrett/cockpit,garrett/cockpit,garrett/cockpit,mvollmer/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,mvollmer/cockpit,deryni/cockpit,deryni/cockpit,martinpitt/cockpit,cockpituous/cockpit,cockpituous/cockpit,garrett/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,deryni/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,martinpitt/cockpit,garrett/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,mvollmer/cockpit,deryni/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,cockpituous/cockpit,mvollmer/cockpit,deryni/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,deryni/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,cockpituous/cockpit