[8.x](backport #5346) Improve testing logger #5448
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What does this PR do?
Adds a PrettyPrintf method to ObservedLogs to logger.NewTesting
Why is it important?
The testing logger is helpful, however on every failed test it's necessary to manually format the logs before printing. That leads to several tests just printing the logs as they are which isn't the best for reading them and investigating why the test failed.
The new
PrettyPrintf
method provides an easy way to pretty print the logsChecklist
[ ] I have made corresponding changes to the documentation[ ] I have made corresponding change to the default configuration files[ ] I have added an entry in./changelog/fragments
using the changelog tool[ ] I have added an integration test or an E2E testDisruptive User Impact
None
How to test this PR locally
run the test
TestObservedLogs_PrettyPrintf
Related issues
Questions to ask yourself
This is an automatic backport of pull request #5346 done by [Mergify](https://mergify.com).