Enable fluentbit tests for BB CI

Currently when enabled the fluentbit script tests are hit or miss whether they pass. Failures look like:

Hitting Fluentbit endpoint...
Test 1 Failure: Cannot hit Fluentbit endpoint.
Debug information (curl response):
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (7) Failed to connect to logging-fluent-bit.logging.svc.cluster.local port 2020: Connection refused

This seems to be something that might be resolved either by changes to networkpolicies or improved retries.