test: Don't fail Selenium tests on get_log() failure
test: Don't fail Selenium tests on get_log() failure

The Edge driver does not support this at all [1], and with firefox it
often fails:

    Unable to get logs: Session [...] was terminated due to BROWSER_TIMEOUT

Raised exceptions there just lead to hiding underlying errors, so just
log failures from `get_log()` without propagating them.

[1] https://docs.microsoft.com/en-us/microsoft-edge/webdriver

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