clients: Pino tests are failing

[lholmquist]

the pino tests are having failures on these platforms in the testing farm:

Fedora Node 18
Fedora Node 16
RHEL9 - Unsubscribed host - node 16

cc @lholmquist @mhdawson

[pkubatrh]

Discussed the failure of pino test case on the nodejs meeting for a bit, we have decided to try and pin a specific version of the module and test with that.
If we figure out the tests are still as flaky as they were before this change, let's focus on making the upstream pino test suite more hardened to failures.

[phracek]

What about having two tests? The first one will be freezed 'pino', 'faas' that should pass always. The other test will use the latest upstream versions, it will be marked as unstable in case of failure. See PR here: #342

[mhdawson]

@phracek that sounds reasonable. One question I had is if the pino tests are flaky or have just never passed on RHEL 9?